Number sequences from 1 to 50

Here are a few interesting number sequences!

Happy numbers: 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49
Mersenne Primes: 3, 7, 31
Harshad-Niven numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42, 45, 48, 50
Non-Armstrong: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50
Palindromic: 11, 22, 33, 44
Perfect numbers: 6, 28
Prime: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47
Pronic: 2, 6, 12, 20, 30, 42
Unhappy numbers: 2, 3, 4, 16, 20, 37, 42
Odd: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49
Even: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50

Number patterns reveal fascinating properties and are probably widely studied in mathematics.

Do you know of a few other ones besides PI or Binary?

Here are a few interesting number sequences! Happy numbers: 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49 Mersenne Primes: 3, 7, 31 Harshad-Niven numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36, 40, 42, 45, 48, 50 Non-Armstrong: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 Palindromic: 11, 22, 33, 44 Perfect numbers: 6, 28 Prime: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47 Pronic: 2, 6, 12, 20, 30, 42 Unhappy numbers: 2, 3, 4, 16, 20, 37, 42 Odd: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49 Even: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50 Number patterns reveal fascinating properties and are probably widely studied in mathematics. Do you know of a few other ones besides PI or Binary?

morphyms1817

@Toscani said in #1:

Wish I had known these at the time I memorized every statistic of each player on my favorite college basketball team.

@Toscani said in #1: > Wish I had known these at the time I memorized every statistic of each player on my favorite college basketball team.

ed01106 edited

The hole numbers: 4, 6, 8,9, 10,14,16,1819, 20,24,26,28,29,30,34,36,38,40,41,42,43,44,45,46,47,48,49,50

Toscani

Whole numbers are non-negative integers that include zero and all positive integers.
In the post #3 there was a typo 1819. I assume it was 18,19. So besides forgetting the comma, all the numbers listed are valid whole numbers.

Abundant numbers: 12, 18, 20, 24, 30, 36, 40, 42, 48

Whole numbers are non-negative integers that include zero and all positive integers. In the post #3 there was a typo 1819. I assume it was 18,19. So besides forgetting the comma, all the numbers listed are valid whole numbers. Abundant numbers: 12, 18, 20, 24, 30, 36, 40, 42, 48

Phil224

edited

The Highly composite numbers (Anti-primes) 1, 2, 4, 6, 12, 24, 36, 48
The circular primes 2, 3, 5, 7, 11, 13, 17, 37
The erdős woods numbers 16, 22, 34, 36, 46

The Highly composite numbers (Anti-primes) 1, 2, 4, 6, 12, 24, 36, 48 The circular primes 2, 3, 5, 7, 11, 13, 17, 37 The erdős woods numbers 16, 22, 34, 36, 46

Phil224

The caboose numbers 41,42,45,50

FQT

Binary number 0,1

FQT

Reverseward number 6,9,8,3,0

Phil224

@FQT said in #8:

Reverseward number 6,9,8,3,0
I don't think 3 is

@FQT said in #8: > Reverseward number 6,9,8,3,0 I don't think 3 is

ed01106

#10

@Toscani said in #4:

Whole numbers are non-negative integers that include zero and all positive integers.
In the post #3 there was a typo 1819. I assume it was 18,19. So besides forgetting the comma, all the numbers listed are valid whole numbers.

#3 was not about whole numbers, but hole numbers. 48 is a triple hole number.
But yes a comma is missing between 18&19

@Toscani said in #4: > Whole numbers are non-negative integers that include zero and all positive integers. > In the post #3 there was a typo 1819. I assume it was 18,19. So besides forgetting the comma, all the numbers listed are valid whole numbers. > #3 was not about whole numbers, but hole numbers. 48 is a triple hole number. But yes a comma is missing between 18&19

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