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A071567 Smallest k>n such that n^2+n+1 divides k^2+k+1. 0
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 24 14:46 EDT 2020. Contains 337321 sequences. (Running on oeis4.)