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A126154 a(n) = Sum_{k=0..n} C(2n,k)*A126150(n,k). 1
1, 10, 420, 38760, 6274320, 1574566560, 566087814720, 276000683679360, 175277074975269120, 140576092830146972160, 138951226585459200107520, 165951785120565606919464960, 235593066998837613695124049920 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

EXAMPLE

a(1) = 1*(1) + 2*(4) + 1*(1) = 10;

a(2) = 1*(6) + 4*(24) + 6*(36) + 4*(24) + 1*(6) = 120;

a(3) = 1*(96) + 6*(384) + 15*(636) + 20*(744) + 15*(636) + 6*(384) + 1*(96) = 38760.

CROSSREFS

Cf. A126150.

Sequence in context: A231052 A085000 A248553 * A199835 A001327 A288325

Adjacent sequences:  A126151 A126152 A126153 * A126155 A126156 A126157

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 20 2006

STATUS

approved

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Last modified September 29 12:15 EDT 2020. Contains 337431 sequences. (Running on oeis4.)