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Search: id:A081906
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| A081906 |
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A sequence related to C(n+6,6). |
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+0
2
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| 1, 11, 100, 820, 6290, 46006, 324556, 2225060, 14902075, 97873625, 632200000, 4025225000, 25307562500, 157349687500, 968628125000, 5909609375000, 35763408203125, 214838427734375, 1281885742187500, 7601284179687500
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Binomial transform of A081905. 4th binomial transform of C(n+6,6). 5th binomial transform of (1,6,15,20,15,6,1,0,0,0,.....).
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FORMULA
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a(n)=5^n(n^6+165n^5+9535n^4+238575n^3+2590024n^2+10661700n+11250000)/11250000 G.f.(1-4x)^6/(1-5x)^7
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CROSSREFS
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Sequence in context: A001738 A120655 A018203 this_sequence A098296 A037542 A037486
Adjacent sequences: A081903 A081904 A081905 this_sequence A081907 A081908 A081909
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KEYWORD
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easy,nonn
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Mar 31 2003
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