A110057 Number of solutions to x == 0 (mod A007954(x)), x in A002113, 10^(n-1) <= x < 10^n.

9, 1, 2, 3, 7, 3, 6, 4, 9, 9, 18, 11, 24, 17, 25, 12, 45, 16, 53, 22

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Carlos Rivera, Puzzle 41. Palindromic Carnival, The Prime Puzzles and Problems Connection.

Crossrefs

Cf. A002113, A007954, A117057.

Sequence in context: A177273 A176521 A222218 * A197830 A068151 A199378

Adjacent sequences: A110054 A110055 A110056 * A110058 A110059 A110060

Keyword

nonn,base,more

Author

Jean-Christophe Colin (colinjeanchristophe(AT)yahoo.fr), Sep 04 2005

Extensions

Edited by R. J. Mathar, Feb 08 2008

Offset changed to 1 and a(1) inserted by Jinyuan Wang, Jun 15 2022

Status

approved