A094808 Numbers of the form Fibonacci(p-1)/p, where p are primes ending in 1 or 9 (i.e., A045468).

5, 136, 10959, 26840, 2495955, 10021808981, 25377192720, 2681584376185, 113220181313816, 12360536835574179, 3507176714646157575, 152669979363491409744, 5030798638073511770858765, 222738121208382108330061096, 25556388788416277561281235799, 66021302497942406531221230200

Offset: 1

Author

Lekraj Beedassy, Jun 11 2004

Keywords

• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..316

Crossrefs

Cf. A045468, A094809, A096028.

Programs

Mathematica

s = Select[ Prime[ Range[35]], Mod[ #, 10] == 1 || Mod[ #, 10] == 9 &]; Fibonacci[s - 1]/s (* Robert G. Wilson v, Jun 15 2004 *)
Fibonacci[#-1]/#&/@Select[Prime[Range[40]],MemberQ[{1,9},Mod[#,10]]&] (* Harvey P. Dale, Jul 20 2025 *)

PARI

forprime(p=11, 10^3, if((p+3)%5<2, next); print1(fibonacci(p-1)/p, ", ")); \\ Jinyuan Wang, Feb 24 2020

Extensions

More terms from Robert G. Wilson v, Jun 15 2004

More terms from Jinyuan Wang, Feb 24 2020