A229092 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A229092

First member of a prime 5-tuple in a p^2+p-1 progression.

3, 20963909, 45608209, 46939069, 57856709, 73805093, 83307563, 83983931, 89836889, 90151643, 95786459, 98527859, 98886679, 116260099, 118084559, 118955549, 153404593, 155710213, 190926341, 204854891, 221010899, 238175309, 271884073, 295874083, 299614369

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Subsequence of A057325.

LINKS

Pierre CAMI, Table of n, a(n) for n = 1..62

MATHEMATICA

pqQ[p_]:=AllTrue[Rest[NestList[#^2+#-1&, p, 4]], PrimeQ]; Select[Prime[ Range[ 16232600]], pqQ] (* Harvey P. Dale, Oct 16 2021 *)

PROG

(PARI) is(n)=for(k=1, 5, if(!isprime(n), return(0)); n=n^2+n-1); 1 \\ Charles R Greathouse IV, Sep 13 2013

CROSSREFS