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A079348 Fibonacci{p-(p/5)} is the not the first Fibonacci number that p divides. 3

%I

%S 13,17,29,37,41,47,53,61,73,89,97,101,107,109,113,137,139,149,151,157,

%T 173,181,193,197,199,211,229,233,241,257,263,269,277,281,293,307,313,

%U 317,331,337,347,349,353,373,389,397,401,409,421,433,449,457,461

%N Fibonacci{p-(p/5)} is the not the first Fibonacci number that p divides.

%e a(1)=13 as (13/5)=-1, F(14)=377=13.29, however F(7)=13.

%o (PARI) quad5(x)=if (x%5>1 && x%5<4,-1,1) forprime (p=7,500, wss=p-quad5(p); for (n=1, wss,if (fibonacci(n)%p==0,if (n<wss,print1(p","); break))))

%Y Cf. A079346, A079347, A079349.

%K nonn

%O 0,1

%A _Jon Perry_, Jan 04 2003

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Last modified May 21 10:48 EDT 2019. Contains 323443 sequences. (Running on oeis4.)