A160352 Numbers of the form pqr, where p<q<r are primes such that r = +/-1 (mod pq).

30, 42, 66, 78, 102, 110, 114, 138, 174, 182, 186, 190, 222, 246, 258, 282, 290, 310, 318, 354, 366, 402, 406, 410, 426, 435, 438, 465, 474, 498, 506, 534, 574, 582, 590, 602, 606, 610, 618, 642, 654, 678, 710, 762, 786, 790, 822, 834, 861, 885, 890, 894

Offset

1,1

Comments

A subsequence of A007304. The odd terms are listed in A160353.

Links

Robin Visser, Table of n, a(n) for n = 1..10000

Prog

(PARI) for( pqr=1, 1999, my(f=factor(pqr)); #f~==3 & vecmax(f[, 2])==1 & abs((f[3, 1]+1)%(f[1, 1]*f[2, 1])-1)==1 & print1(pqr ", "))

Crossrefs

Cf. A007304, A160353.

Sequence in context: A302570 A300156 A306330 * A291446 A342398 A226104

Adjacent sequences: A160349 A160350 A160351 * A160353 A160354 A160355

Keyword

nonn

Author

M. F. Hasler, Jun 03 2009

Status

approved