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A047059 T(2n,n), array T given by A047050. 0
1, 2, 9, 48, 275, 1652, 10150, 63282, 398746, 2533674, 16205319, 104195452, 672838453, 4360534510, 28346553454, 184759124740, 1206997624839, 7900952176826, 51811230435895, 340294870303512, 2238219252373710 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Sequence in context: A190315 A190253 A174687 * A153297 A153390 A118341

Adjacent sequences:  A047056 A047057 A047058 * A047060 A047061 A047062

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 24 11:11 EDT 2020. Contains 337317 sequences. (Running on oeis4.)