A129244 Least K such that K*(prime(10*n)^(10*n))-1 is prime with prime(n)=n-th prime.

14, 20, 200, 98, 42, 132, 908, 432, 1040, 290, 48, 224, 1370, 462, 146, 110, 398, 402, 152, 264, 770, 1322, 3030, 692, 1106

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Prog

(PARI) a(n) = {my(k=1); while (!isprime(k*(prime(10*n)^(10*n))-1), k++); k; } \\ Michel Marcus, Sep 16 2019

Crossrefs

Cf. A129243, A129245.

Sequence in context: A368408 A064974 A167335 * A070719 A030643 A303475

Adjacent sequences: A129241 A129242 A129243 * A129245 A129246 A129247

Keyword

nonn,more

Author

Pierre CAMI, Apr 05 2007

Status

approved