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Search: id:A104672
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| 1, 50, 825, 7700, 50050, 252252, 1051050, 3775200, 12033450, 34763300, 92470378, 229265400
(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+4,4)*C(0+9,0+0)= C(4,4)*C(9,0)=1*1=1
If n=6 then C(6+4,4)*C(6+9,6+0)= C(10,4)*C(15,6)=210*5005=1051050
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CROSSREFS
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Cf. A062190.
Adjacent sequences: A104669 A104670 A104671 this_sequence A104673 A104674 A104675
Sequence in context: A022147 A052460 A128799 this_sequence A086027 A110929 A101929
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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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