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A176551 Products of 2 primes of the form 3*k-+1. 1
4, 10, 14, 22, 25, 26, 34, 35, 38, 46, 49, 55, 58, 62, 65, 74, 77, 82, 85, 86, 91, 94, 95, 106, 115, 118, 119, 121, 122, 133, 134, 142, 143, 145, 146, 155, 158, 161, 166, 169, 178, 185, 187, 194, 202, 203, 205, 206, 209, 214, 215, 217, 218, 221, 226, 235, 247 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Semiprimes without 3*primes (or triple the primes).

Numbers of the form A045344(i)*A045344(j), any i, j. [From R. J. Mathar, Apr 27 2010]

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Cf. A001358, A001748, A100959.

Sequence in context: A099355 A161366 A310424 * A175731 A242486 A060031

Adjacent sequences:  A176548 A176549 A176550 * A176552 A176553 A176554

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Apr 20 2010

EXTENSIONS

Entries checked by R. J. Mathar, Apr 27 2010

STATUS

approved

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Last modified April 24 00:02 EDT 2019. Contains 322404 sequences. (Running on oeis4.)