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 A094410 Numbers n such that n divides Fibonacci(n-1) but does not divide Fibonacci(n) - 1. 2
 442, 1891, 6601, 8149, 13981, 17119, 17711, 30889, 40501, 52701, 68101, 78409, 88601, 88831, 115231, 138601, 145351, 150121, 153781, 191351, 199801, 218791, 265881, 266071, 316561, 332949, 342271, 348517, 407353, 453151, 456301, 464101 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Giovanni Resta, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Range[50000], ! Mod[Fibonacci[ # ] - 1, # ] == 0 && Mod[Fibonacci[ # - 1], # ] == 0 &] PROG (PARI) fibmod(n, m)=(Mod([0, 1; 1, 1], m)^n*[0; 1])[1, 1] is(n)=fibmod(n-1, n)==0 && fibmod(n, n)!=1 \\ Charles R Greathouse IV, Nov 04 2016 CROSSREFS Cf. A069106, A094394, A094409. Sequence in context: A158322 A031720 A069106 * A236706 A105922 A250086 Adjacent sequences:  A094407 A094408 A094409 * A094411 A094412 A094413 KEYWORD nonn AUTHOR Eric Rowland, May 01 2004 EXTENSIONS More terms from David Wasserman, May 08 2007 STATUS approved

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Last modified December 9 19:51 EST 2019. Contains 329879 sequences. (Running on oeis4.)