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Search: id:A073687
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A073687 Group the composite numbers so that the sum of each group is a prime: (4, 6, 8, 9, 10), (12, 14, 15), (16, 18, 20, 21, 22), (24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55), ...; sequence gives first term in each group. +0
3
4, 12, 16, 24, 56, 58, 65, 68, 70, 77, 87, 94, 99, 102, 106, 114, 116, 118, 140, 142, 185, 195, 219, 221, 224, 226, 235, 255, 259, 266, 278, 280, 290, 302, 310, 318, 334, 366, 370, 375, 377, 399, 403, 411, 413, 415, 442, 447, 462, 494, 530, 532, 550, 568, 575 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A073685, A073686.

Sequence in context: A081523 A053006 A057962 this_sequence A090818 A075191 A028594

Adjacent sequences: A073684 A073685 A073686 this_sequence A073688 A073689 A073690

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 11 2002

EXTENSIONS

More terms from Lior Manor (lior.manor(AT)gmail.com) Aug 13 2002

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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