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Search: id:A126446
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A126446 Column 0 of triangle A126445; a(n) = C( C(n+2,3), n). +0
8
1, 1, 6, 120, 4845, 324632, 32468436, 4529365776, 840261910995, 200063149171380, 59473554359599446, 21592914273609648996, 9403538945961296957821, 4838670732821812768919800, 2904538537066424425438417800 (list; graph; listen)
OFFSET

0,3

PROGRAM

(PARI) a(n)=binomial(n*(n+1)*(n+2)/3!, n)

CROSSREFS

Cf. A126445; A126447, A126448, A126449; A126451, A126455, A126458.

Sequence in context: A075844 A029697 A126448 this_sequence A057003 A096718 A096720

Adjacent sequences: A126443 A126444 A126445 this_sequence A126447 A126448 A126449

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Dec 27 2006

page 1

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.


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