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A300555
Numbers i such that Fibonacci(i) is divisible by i+k for k = 0..7.
1
175472640, 44915270400, 50238568800, 439287521400, 572836904640, 589596638400, 735284012400, 778042465200, 987189789600, 1261551677400, 1297640010240, 1307130728400, 1569978804240, 1979830125000, 2705598768600
OFFSET
1,1
PROG
(PARI) fibomod(n, m) = lift(Mod([0, 1; 1, 1], m)^(n+1))[1, 1];
isok(n) = prod(k=0, 7, fibomod(n, n+k)==0);
CROSSREFS
KEYWORD
nonn
AUTHOR
Silvester Resnik, May 19 2018
STATUS
approved