A071567 Smallest k>n such that n^2+n+1 divides k^2+k+1.

4, 4, 9, 16, 25, 36, 49, 64, 16, 100, 30, 144, 169, 196, 225, 100, 289, 324, 361, 400, 441, 484, 102, 576, 67, 121, 729, 784, 230, 410, 961, 485, 1089, 1156, 61, 552, 163, 1444, 485, 1600, 1681, 737, 1849, 893, 372, 571, 840, 1134, 178, 2500, 809, 2704

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Prog

(PARI) for(n=1, 100, s=n+1; while((s^2+s+1)%(n^2+n+1)>0, s++); print1(s, ", "))

Crossrefs

Sequence in context: A098359 A319435 A226096 * A304990 A263727 A133037

Adjacent sequences: A071564 A071565 A071566 * A071568 A071569 A071570

Keyword

easy,nonn

Author

Benoit Cloitre, May 31 2002

Status

approved