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Column 1 of triangle A125653; also equals the eigensequence of triangle A125653.
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%I #3 Mar 30 2012 18:37:01

%S 1,1,2,4,9,24,75,269,1091,4940,24699,135141,803122,5150259,35436569,

%T 260300079,2032260757,16798435176,146498077799,1343752561687,

%U 12927673809234,130120187348654,1367117984143960,14962669807495136

%N Column 1 of triangle A125653; also equals the eigensequence of triangle A125653.

%C Column k of triangle A125653 equals the eigensequence of matrix power A125653^k for k>=0.

%F a(n) = A125653(n+1,1) = Sum_{k=0..n-1} A125653(n-1,k)*a(k) for n>0 with a(0)=1.

%Y Cf. A125653 (triangle); rows: A125655, A125656, A125657; A125658 (row sums); A125659 (central terms).

%K nonn

%O 0,3

%A _Paul D. Hanna_, Nov 30 2006