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Search: id:A161689
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A161689 Intersection of A151740 and A151741. +0
1
49, 99, 153, 161, 171, 175, 185, 189, 221, 231, 235, 243, 247, 265, 285, 289, 319, 329, 341, 351, 369, 375, 391, 405, 429, 435, 441, 469, 473, 495, 507, 517, 531, 535, 545, 549, 581, 589, 603, 609, 639, 645, 651, 657, 667, 671, 679, 689, 711, 715, 725, 729 (list; graph; listen)
OFFSET

1,1

COMMENT

Composite numbers that are sum of two and three consecutive composite numbers. Provably only odd integers.

EXAMPLE

49=24+25=15+16+18

99=49+50=32+33+34

153=76+77=50+51+52.

CROSSREFS

A151740, A151741, A151745.

Sequence in context: A044519 A031484 A114013 this_sequence A019547 A067673 A045253

Adjacent sequences: A161686 A161687 A161688 this_sequence A161690 A161691 A161692

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Jun 17 2009

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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