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A110057 Number of solutions to x == 0 (mod A007954(x)), x in A002113, 10^(n-1) <= x < 10^n. 0
9, 1, 2, 3, 7, 3, 6, 4, 9, 9, 18, 11, 24, 17, 25, 12, 45, 16, 53, 22 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 29 00:02 EST 2023. Contains 359905 sequences. (Running on oeis4.)