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A154366 Numbers n such that the smallest prime factor of composite(n) plus the largest prime factor of composite(n) is composite and the sum of prime factors of composite(n) (with multiplicity) is composite. 0
1, 3, 4, 7, 8, 9, 12, 15, 16, 17, 20, 21, 23, 25, 26, 28, 31, 33, 35, 38, 40, 43, 45, 46, 49, 50, 52, 55, 56, 58, 60, 61, 62, 63, 66, 67, 68, 69, 70, 72, 77, 78, 81, 82, 83, 84, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 101, 102, 104, 105, 106, 108, 110, 111, 115, 118, 119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..68.

CROSSREFS

Sequence in context: A187839 A183988 A175054 * A226227 A319736 A100452

Adjacent sequences:  A154363 A154364 A154365 * A154367 A154368 A154369

KEYWORD

nonn,easy,less

AUTHOR

Juri-Stepan Gerasimov, Jan 08 2009

EXTENSIONS

Corrected and edited by Charles R Greathouse IV, Apr 01 2010

STATUS

approved

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Last modified October 22 22:34 EDT 2019. Contains 328335 sequences. (Running on oeis4.)