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A049328 Numbers whose prime factors sum to 20. 0
51, 91, 130, 154, 156, 220, 297, 441, 525, 560, 625, 630, 672, 750, 756, 800, 900, 960, 1024 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

EXAMPLE

E.g. 51 = 3 * 17 and 3 + 17 = 20. 1024 = 2^10 and 10*2 = 20.

CROSSREFS

Sequence in context: A050698 A039474 A020180 * A075894 A044140 A044521

Adjacent sequences:  A049325 A049326 A049327 * A049329 A049330 A049331

KEYWORD

fini,full,nonn

AUTHOR

Rawlyn Watson (rawlyn(AT)chplayers.freeserve.co.uk)

EXTENSIONS

Corrected by Frank.Ellermann(AT)t-online.de, Jun 07, 2001

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Last modified February 14 20:13 EST 2012. Contains 205663 sequences.