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A024604 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (composite numbers), t = (primes). 0
8, 12, 38, 58, 126, 174, 297, 381, 569, 689, 979, 1167, 1591, 1825, 2372, 2700, 3408, 3814, 4716, 5166, 6274, 6856, 8175, 8811, 10375, 11141, 12989, 13909, 16008, 17042, 19448, 20606, 23335, 24589, 27647, 29133, 32611, 34229, 38139, 39947, 44278, 46356, 51110 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..43.

CROSSREFS

Sequence in context: A067681 A132356 A282943 * A025103 A307652 A281663

Adjacent sequences:  A024601 A024602 A024603 * A024605 A024606 A024607

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 6 15:23 EDT 2020. Contains 333276 sequences. (Running on oeis4.)