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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
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; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..28.

CROSSREFS

Sequence in context: A075708 A066617 A272272 * A062015 A006640 A212686

Adjacent sequences:  A024586 A024587 A024588 * A024590 A024591 A024592

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 14 13:12 EDT 2020. Contains 336480 sequences. (Running on oeis4.)