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Search: id:A114253
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| A114253 |
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C(5+2*n,5+n)*C(10+2*n,0+n) |
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+0
1
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| 1, 84, 3276, 92400, 2187900, 46558512, 923410488, 17439488352, 317907339750, 5644249611000, 98209943231400, 1682207622669600, 28457345616827400
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OFFSET
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0,2
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EXAMPLE
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If n=1 then C(5+2*1,5+1)*C(10+2*1,0+1)=C7,6)*C(12,1)=7*12=84
If n=11 then C(5+2*n,5+n)*C(10+2*n,0+n)=C(27,16)*C(32,11)=13037895*129024480=1682207622669600
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CROSSREFS
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Cf. A062190.
Sequence in context: A104674 A140903 A026809 this_sequence A017800 A035737 A035806
Adjacent sequences: A114250 A114251 A114252 this_sequence A114254 A114255 A114256
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KEYWORD
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easy,nonn
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AUTHOR
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Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Feb 04 2006
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