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A160352 Numbers of the form pqr, where p<q<r are primes such that r = +/-1 (mod pq). 4
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
A subsequence of A007304. The odd terms are listed in A160353.
LINKS
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
Sequence in context: A302570 A300156 A306330 * A291446 A342398 A226104
KEYWORD
nonn
AUTHOR
M. F. Hasler, Jun 03 2009
STATUS
approved

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Last modified February 28 20:40 EST 2024. Contains 370400 sequences. (Running on oeis4.)