Decomposition of A028835
Numbers n such that iterated sum of digits of n is a prime.
Decomposition of A028870
Numbers n such that n^2 - 2 is prime.
Decomposition of A028873
Numbers n such that n^2 - 3 is prime.
Decomposition of A029581
All digits are composite.
Decomposition of A029702
Q(sqrt(n)) has class number 2.
Decomposition of A029705
Squarefree n such that Q(sqrt(n)) has class number 5.
Decomposition of A029742
Nonpalindromic numbers.
Decomposition of A029793
Numbers n such that n and n^2 have the same set of digits.
Decomposition of Palindromic in base 8
Numbers that are palindromic in base 8.
Decomposition of Palindromic in base 5.
Palindromic in base 5.