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A105251
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C(n+4,n)*C(n+8,n).
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0
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1, 45, 675, 5775, 34650, 162162, 630630, 2123550, 6370650, 17381650, 43801758, 103169430, 229265400, 484306200, 978496200, 1900457064, 3563356995, 6473226375, 11428041625, 19658764125, 33026723730, 54295634250, 87501228750
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| a(0) : if n=0 then C(0+4,0)*C(0+8,0)=C(4,0)*C(8,0)=1*1=1
a(10) : if n=10 then C(10+4,10)*C(10+8,10)=C(14,10)*(18,10)=1001*43758=43801758
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MATHEMATICA
| f[n_] := Binomial[n + 4, n]Binomial[n + 8, n]; Table[ f[n], {n, 0, 22}] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005)
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CROSSREFS
| Sequence in context: A090024 A160234 A110691 * A099632 A024379 A134290
Adjacent sequences: A105248 A105249 A105250 * A105252 A105253 A105254
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KEYWORD
| easy,nonn
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AUTHOR
| Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 14 2005
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005
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