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A054149 T(2n-1,n), array T as in A054144. 0

%I

%S 1,14,84,410,1820,7648,31008,122584,475600,1818656,6874560,25742624,

%T 95645888,353032960,1295729664,4732541824,17211685120,62362187264,

%U 225201546240,810825419264,2911520685056,10429433085952

%N T(2n-1,n), array T as in A054144.

%F Conjectures from _Colin Barker_, Feb 11 2015: (Start)

%F a(n) = 8*a(n-1)-20*a(n-2)+16*a(n-3)-4*a(n-4).

%F G.f.: x*(2*x^3-8*x^2+6*x+1) / (2*x^2-4*x+1)^2.

%F (End)

%K nonn

%O 1,2

%A _Clark Kimberling_, Mar 18 2000

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Last modified November 14 03:52 EST 2018. Contains 317159 sequences. (Running on oeis4.)