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Search: id:A104475
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| 70, 630, 3150, 11550, 34650, 90090, 210210, 450450, 900900, 1701700, 3063060, 5290740, 8817900, 14244300, 22383900, 34321980, 51482970, 75710250, 109359250, 155405250, 217567350, 300450150, 409704750, 552210750, 736281000, 971890920
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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a(0) : if n=0 then C(0+4,4)*C(0+8,4)=C(4,4)*C(8,4)=1*70=70
a(7) : if n=5 then C(5+4,4)*C(5+8,4)=C(9,4)*(13,4)=126*715=90090
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MATHEMATICA
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f[n_] := Binomial[n + 4, 4]Binomial[n + 8, 4]; Table[ f[n], {n, 0, 25}] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005)
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CROSSREFS
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Adjacent sequences: A104472 A104473 A104474 this_sequence A104476 A104477 A104478
Sequence in context: A072596 A007330 A060541 this_sequence A027804 A006037 A002975
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KEYWORD
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easy,nonn
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AUTHOR
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Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 18 2005
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005
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