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A025138 a(n) = (1/2)*(3rd elementary symmetric function of C(n,0), C(n,1), ..., C(n,[ n/2 ]). 0
12, 25, 1155, 3136, 89012, 282339, 6356460, 22384516, 437787537, 1663878008, 29545748596, 119083774720, 1968978205492, 8317456369783 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

Table of n, a(n) for n=4..17.

CROSSREFS

Sequence in context: A171069 A042193 A041286 * A075689 A054303 A184826

Adjacent sequences:  A025135 A025136 A025137 * A025139 A025140 A025141

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 20 09:03 EDT 2019. Contains 322307 sequences. (Running on oeis4.)