A064229 Smallest prime p associated with A064164(n).

61, 71, 83, 23, 59, 61, 661, 23, 71, 20639383, 439429, 521, 79, 811, 1697, 14557, 1080941, 257, 2281, 50989, 67411, 137, 83, 14029308060317546154181, 57554485363, 59, 70552493296669, 59, 694763, 293, 6007711, 12893, 1021, 149, 71, 24324571, 9293, 12318573951317236818169524329

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..120

Example

8!+1 = 61*661 and 61 is not 1 mod 8, so the first term is 61.

Prog

(PARI) choose(n) = {my(f=factor(n!+1)[, 1]); for(i=1, #f, if(f[i]%n != 1, return(f[i]))); 0; }
lista(nn) = for(k=1, nn, if(choose(k)>1, print1(choose(k), ", "))); \\ Jinyuan Wang, Oct 03 2019

Crossrefs

Sequence in context: A043213 A043993 A165287 * A180555 A039478 A109549

Adjacent sequences: A064226 A064227 A064228 * A064230 A064231 A064232

Keyword

nonn,easy

Author

N. J. A. Sloane, Sep 23 2001

Extensions

More terms from Don Reble, Sep 23 2001

Status

approved