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A047074 Sum{T(i,n-i): i=0,1,...,[ n/2 ]}, array T as in A047072. 1
1, 1, 1, 3, 2, 5, 6, 14, 20, 45, 70, 154, 252, 546, 924, 1980, 3432, 7293, 12870, 27170, 48620, 102102, 184756, 386308, 705432, 1469650, 2704156, 5616324, 10400600, 21544100, 40116600, 82907640, 155117520, 319929885, 601080390, 1237518450 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..35.

CROSSREFS

Sequence in context: A058638 A201218 A139140 * A181883 A021311 A128224

Adjacent sequences:  A047071 A047072 A047073 * A047075 A047076 A047077

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 17 18:24 EST 2018. Contains 299296 sequences. (Running on oeis4.)