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

%I #10 Jul 03 2022 09:06:04

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

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

%H Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_041.htm">Puzzle 41. Palindromic Carnival</a>, The Prime Puzzles and Problems Connection.

%Y Cf. A002113, A007954, A117057.

%K nonn,base,more

%O 1,1

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

%E Edited by _R. J. Mathar_, Feb 08 2008

%E Offset changed to 1 and a(1) inserted by _Jinyuan Wang_, Jun 15 2022