login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A160352 Numbers of the form pqr, where p<q<r are primes such that r = +/-1 (mod pq). 3
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

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

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 A226104 A091455

Adjacent sequences:  A160349 A160350 A160351 * A160353 A160354 A160355

KEYWORD

nonn

AUTHOR

M. F. Hasler, Jun 03 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 25 14:40 EST 2021. Contains 341609 sequences. (Running on oeis4.)