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Search: id:A104671
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| 1, 36, 450, 3300, 17325, 72072, 252252, 772220, 2123550, 5348200, 12514788, 27511848, 573163350, 113954400, 217443600, 4000096224, 712671399
(list; graph; listen)
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OFFSET
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0,2
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EXAMPLE
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If n=0 then C(0+3,3)*C(0+8,0+0)= C(3,3)*C(8,0)=1*1=1
If n=6 then C(6+3,3)*C(6+8,6+0)= C(9,3)*C(14,6)=84*3003=252252
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CROSSREFS
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Cf. A062190.
Sequence in context: A105095 A027782 A110693 this_sequence A128986 A090408 A008657
Adjacent sequences: A104668 A104669 A104670 this_sequence A104672 A104673 A104674
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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 22 2005
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