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A132474 Column 2 of triangle A132471. 2


%S 1,3,6,54,780,16500,465240,16486512,708621480,36072738648,

%T 2137167558432,145394086979328,11236518532643184,977782595316947472,

%U 95086323023335926048,10266902547496839586848,1223846872961573356310112

%N Column 2 of triangle A132471.

%C Diagonal m of triangle T=A132471 equals diagonal m-1 of matrix power T^m for m>1: T(n,k) = [T^(n-k)](n-1,k) for n>=k>0, with T(n,n)=1 and T(n+1,n)=n+1 for n>=0.

%Y Cf. A132471 (triangle); other columns: A132472, A132473.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Aug 22 2007

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Last modified July 30 23:12 EDT 2021. Contains 346365 sequences. (Running on oeis4.)