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A161740
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Fourth right hand column of the RSEG2 triangle A161739
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3
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0, 30, 425, 3008, 14572, 55060, 174130, 481360, 1197196, 2733874, 5817955, 11668800, 22250280, 40616264, 71373956, 121292960, 200092040, 321439910, 504211037, 774042368, 1165242100, 1723107100, 2506711350, 3592233840
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n) = (n+4)*(n+3)*(n+2)*(n+1)*(n)*(n-1)*(35*n^3+189*n^2+325*n+204)/45360
The denominator of a(n) (45360) equals the product of the first three terms of A036283 (6*60*126). - Johannes W. Meijer (meijgia(AT)hotmail.com), Oct 22 2009
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CROSSREFS
| Equals fourth right hand column of A161739 (RSEG2 triangle).
Other right hand columns are A000292, A107963, A161741.
Sequence in context: A106440 A097213 A110612 * A161623 A010946 A022625
Adjacent sequences: A161737 A161738 A161739 * A161741 A161742 A161743
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KEYWORD
| easy,nonn
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AUTHOR
| Johannes W. Meijer & Nico Baken (meijgia(AT)hotmail.com and n.h.g.baken(AT)tudelft.nl), Jun 18 2009
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