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A054104 T(n,2), array T as in A054098. 0
2, 3, 8, 30, 134, 714, 4462, 32126, 262362, 2398738, 24287222, 269858022, 3265282066, 42745510682, 601999275438, 9076296768142, 145869055202282, 2489498542118946 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..19.

CROSSREFS

Sequence in context: A188498 A012886 A078918 * A053556 A301737 A001048

Adjacent sequences:  A054101 A054102 A054103 * A054105 A054106 A054107

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 14 07:03 EST 2019. Contains 329978 sequences. (Running on oeis4.)