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 A129463 Row sums of triangle A129462 (v=2 member of a certain family). 1
 1, 0, -1, -4, -39, -680, -18425, -713820, -37390255, -2543067280, -217799766225, -22928327328500, -2909576503498775, -437960283393276600, -77145678498655849225, -15720035935018890359500, -3668950667796545284209375, -972327797466833893742228000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS See A129462 for the M. Bruschi et al. reference. LINKS FORMULA a(n)=sum(A129462(n,m),m=0..n),n>=0. From Vaclav Kotesovec, Aug 24 2016: (Start) a(n) = 2*(n-2)*(n-1)*a(n-1) - (n-3)^2*(n-1)^2*a(n-2). a(n) ~ c * n^(2*n+(sqrt(5)-3)/2) / exp(2*n), where c = -2.3203776630375605070105975273368548459... (End) CROSSREFS Cf. A129458 (row sums v=1 member). Sequence in context: A066399 A065760 A132612 * A299426 A188418 A136653 Adjacent sequences:  A129460 A129461 A129462 * A129464 A129465 A129466 KEYWORD sign,easy AUTHOR Wolfdieter Lang May 04 2007 STATUS approved

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Last modified May 16 04:38 EDT 2022. Contains 353688 sequences. (Running on oeis4.)