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Search: id:A024589
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A024589 s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (composite numbers), t = (F(2), F(3), ...). +0
1
4, 8, 24, 38, 86, 140, 271, 438, 789, 1277, 2222, 3595, 6111, 9888, 16509, 26712, 44101, 71357, 117060, 189407, 309347, 500534, 814774, 1318332, 2141400, 3464858, 5620898, 9094804 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A083504 A075708 A066617 this_sequence A062015 A006640 A115641

Adjacent sequences: A024586 A024587 A024588 this_sequence A024590 A024591 A024592

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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