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A053790 Composite numbers arising as sum of first k primes. +0
2
10, 28, 58, 77, 100, 129, 160, 238, 328, 381, 440, 501, 568, 639, 712, 791, 874, 963, 1060, 1161, 1264, 1371, 1480, 1593, 1720, 1851, 1988, 2127, 2276, 2427, 2584, 2747, 2914, 3087, 3266, 3447, 3638, 3831, 4028, 4227, 4438, 4661, 4888, 5117, 5350, 5589 (list; graph; listen)
OFFSET

1,1

COMMENT

Generate sum of first k primes; accept if not prime.

EXAMPLE

a(4)=77 because 2+3+5+7+11+13+17+19=77, not prime and 77 is the 4th such composite sum of k primes.

CROSSREFS

Cf. A053789.

Sequence in context: A060544 A088406 A054112 this_sequence A048491 A124703 A126364

Adjacent sequences: A053787 A053788 A053789 this_sequence A053791 A053792 A053793

KEYWORD

easy,nonn

AUTHOR

Enoch Haga (Enokh(AT)comcast.net), Mar 27 2000

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.


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