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 A161740 Fourth right hand column of the RSEG2 triangle A161739 3
 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; text; internal format)
 OFFSET 1,2 LINKS 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, Oct 22 2009 CROSSREFS Equals fourth right hand column of A161739 (RSEG2 triangle). Other right hand columns are A000292, A107963, A161741. Sequence in context: A097213 A110612 A290363 * A161623 A210431 A296919 Adjacent sequences:  A161737 A161738 A161739 * A161741 A161742 A161743 KEYWORD easy,nonn AUTHOR Johannes W. Meijer & Nico Baken (n.h.g.baken(AT)tudelft.nl), Jun 18 2009 STATUS approved

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Last modified September 22 20:23 EDT 2020. Contains 337291 sequences. (Running on oeis4.)