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Search: id:A107395
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| 15, 175, 1050, 4410, 14700, 41580, 103950, 235950, 495495, 975975, 1821820, 3248700, 5569200
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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If n=0 then C(0+4,4)*C(0+6,4)= C(4,4)*C(6,4)=1*15=15
If n=9 then C(9+4,4)*C(9+6,4)= C(13,4)*C(15,4)=715*1365=975975
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CROSSREFS
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Cf. A062196.
Sequence in context: A016225 A058687 A082678 this_sequence A036083 A051588 A016164
Adjacent sequences: A107392 A107393 A107394 this_sequence A107396 A107397 A107398
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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), May 25 2005
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