A161741 - OEIS

%I #7 Oct 05 2013 13:17:35

%S -4,-14,1561,25809,218769,1284261,5885671,22482031,74581507,220977757,

%T 596666070,1490430630,3484310310,7693206894,16160890914,32492871698,

%U 62838521438,117376191548,212507783895,374035542815,641676187295,1075368660795,1763954792145

%N Fifth right hand column of the RSEG2 triangle A161739.

%H T. D. Noe, <a href="/A161741/b161741.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) = (n+5)*(n+4)*(n+3)*(n+2)*(n+1)*(n)*(175*n^6+1365*n^5+2671*n^4-2805*n^3-14735*n^2-14445*n-2466)/5443200.

%F The denominator of a(n) (5443200) equals the product of the first four terms of A036283 (6*60*126*120). - _Johannes W. Meijer_, Oct 22 2009

%Y Equals fifth right hand column of A161739 (RSEG2 triangle).

%Y Other right hand columns are A000292, A107963, A161740.

%K easy,sign

%O 1,1

%A _Johannes W. Meijer_ and Nico Baken (n.h.g.baken(AT)tudelft.nl), Jun 18 2009