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%I #5 Sep 25 2020 00:01:22
%S -11,36,-85,166,-287,456,-681,970,-1331,1772,-2301,2926,-3655,4496,
%T -5457,6546,-7771,9140,-10661,12342,-14191,16216,-18425,20826,-23427,
%U 26236,-29261,32510,-35991,39712,-43681,47906,-52395,57156
%N Second right hand column of the Beta triangle A160480
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (-4,-6,-4,-1).
%F a(n) = (-1)^(n)*(2*n+1)^2 - a(n-1) for n = 2, 3, .. , with a(1) = -11.
%F From _Chai Wah Wu_, Sep 24 2020: (Start)
%F a(n) = - 4*a(n-1) - 6*a(n-2) - 4*a(n-3) - a(n-4) for n > 4.
%F G.f.: x*(-2*x^3 - 7*x^2 - 8*x - 11)/(x + 1)^4. (End)
%Y A160480 is the Beta triangle.
%Y A160484 is the third right hand column.
%K easy,sign
%O 1,1
%A _Johannes W. Meijer_, May 24 2009
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