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A047125 T(n,n-3), array T as in A047120. 0
1, 2, 6, 28, 120, 501, 2020, 8062, 31992, 126556, 499478, 1968504, 7751812, 30513489, 120090702, 472636988, 1860354732, 7323975621, 28840527086, 113600162826, 447592682400, 1764087889221, 6954932056860, 27428450072466 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..26.

CROSSREFS

Sequence in context: A242511 A323268 A089748 * A189238 A226497 A307523

Adjacent sequences:  A047122 A047123 A047124 * A047126 A047127 A047128

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 30 17:12 EST 2021. Contains 349424 sequences. (Running on oeis4.)