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A060558 Fifth column (m=4) of triangle A060556. +0
3
5, 55, 316, 1284, 4170, 11550, 28380, 63492, 131703, 256685, 474760, 839800, 1429428, 2352732, 3759720, 5852760, 8900265, 13252899, 19362596, 27804700, 39303550, 54761850, 75294180, 102265020 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n)= (2*n^2+18*n+35)*binomial(n+6, 6)/7.

G.f.: (5+10*x+x^2)/(1-x)^9.

CROSSREFS

2*A000217, A004320, 4*A040977.

Sequence in context: A078216 A014700 A103326 this_sequence A014852 A144893 A015266

Adjacent sequences: A060555 A060556 A060557 this_sequence A060559 A060560 A060561

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Apr 06 2001

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.


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