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0, 1, 6, 22, 61, 142, 292, 548, 958, 1583, 2498, 3794, 5579, 7980, 11144, 15240, 20460, 27021, 35166, 45166, 57321, 71962, 89452, 110188, 134602, 163163, 196378, 234794, 278999, 329624, 387344, 452880
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (5,-9,5,5,-9,5,-1).
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FORMULA
| a(n) = (2*n+3)*(6*n^4+36*n^3+76*n^2+66*n+5)/960-(-1)^n/64. G.f. x*(1+x+x^2) / ( (1+x)*(x-1)^6 ). - R. J. Mathar, Mar 24 2011
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CROSSREFS
| Sequence in context: A066188 A071239 A105450 * A081282 A001769 A166020
Adjacent sequences: A011885 A011886 A011887 * A011889 A011890 A011891
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KEYWORD
| nonn,easy
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AUTHOR
| R. K. Guy
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