A125573 a(n) = number of n-digit terms with different sets of decimal digits in A108571.

1, 1, 2, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 19, 21, 21, 22, 23, 23, 23, 23, 22, 21, 21, 19, 18, 17, 15, 13, 12, 10, 9, 8, 6, 5, 4, 3, 2, 2, 1, 1, 1

Offset: 1

Author

Zak Seidov, Jan 02 2007

Keywords

• fini
• full
• nonn
• base
• less

Crossrefs

Cf. A007837, A034139, A108571, A127007.

Formula

a(n) = A034139(n). - R. J. Mathar, Mar 17 2025