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A047146 T(n,n+1), array T as in A047140. 0
1, 1, 2, 15, 62, 180, 566, 2419, 9780, 34958, 125068, 491958, 1943862, 7377378, 27781250, 107932937, 422922350, 1637252968, 6306134498, 24545899232, 96073204466, 374915623580, 1459739914638, 5704537068510, 22360905044350 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..24.

CROSSREFS

Sequence in context: A084169 A296661 A000181 * A084187 A267596 A119904

Adjacent sequences:  A047143 A047144 A047145 * A047147 A047148 A047149

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 21 23:02 EDT 2018. Contains 316431 sequences. (Running on oeis4.)