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 A053408 Numbers n such that A003266(n) + 1 is prime. 7
 1, 2, 3, 4, 5, 6, 7, 8, 22, 28 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Next term > 300. - Joerg Arndt, Aug 16 2014 The corresponding primes are given in A053413. - Joerg Arndt, Aug 17 2014 If it exists, a(11) > 1100. - Robert Price, May 27 2019 LINKS Table of n, a(n) for n=1..10. C. K. Caldwell, Fibonacci Numbers Eric Weisstein's World of Mathematics, Fibonacci Number. Eric Weisstein's World of Mathematics, Fibonorial MATHEMATICA Select[Range[30], PrimeQ[Fibonorial[#] + 1] &] (* Robert Price, May 26 2019 *) PROG (PARI) ff(n)=prod(i=1, n, fibonacci(i)); for(n=1, 10^6, if(ispseudoprime(ff(n)+1), print1(n, ", "))); \\ Joerg Arndt, Aug 16 2014 CROSSREFS Cf. A000040, A000045, A003266, A053412, A053413. Sequence in context: A134942 A215888 A240963 * A269355 A269357 A335900 Adjacent sequences: A053405 A053406 A053407 * A053409 A053410 A053411 KEYWORD nonn,more AUTHOR G. L. Honaker, Jr., Jan 08 2000 EXTENSIONS Definition edited by Daniel Forgues, Nov 29 2009 Edited definition, Joerg Arndt, Aug 17 2014 STATUS approved

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Last modified December 9 15:36 EST 2023. Contains 367693 sequences. (Running on oeis4.)