A070849 Smallest prime == 1 mod (5n).

11, 11, 31, 41, 101, 31, 71, 41, 181, 101, 331, 61, 131, 71, 151, 241, 1021, 181, 191, 101, 211, 331, 461, 241, 251, 131, 271, 281, 1451, 151, 311, 641, 331, 1021, 701, 181, 1481, 191, 1171, 401, 821, 211, 431, 661, 1801, 461, 941, 241, 491, 251, 1021, 521

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..5000

Prog

(PARI) for(n=1, 80, s=1; while((isprime(s)*s-1)%(5*n)>0, s++); print1(s, ", "))

Crossrefs

Cf. A070846, A070847, A070848, A070850, A070851, A070852, A070853.

Cf. A034694.

Sequence in context: A246554 A218163 A152082 * A124297 A172507 A089766

Adjacent sequences: A070846 A070847 A070848 * A070850 A070851 A070852

Keyword

nonn

Author

Amarnath Murthy, May 15 2002

Extensions

More terms from Benoit Cloitre, May 18 2002

Status

approved