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%I #7 Jan 22 2023 09:16:06
%S 1,4,28,352,7888,319168,23833792,3359617024,911281182976
%N Eigensequence of triangle A038208.
%F Given triangle A038208 as an infinite lower triangular matrix: [1; 2,2; 4,8,4; 8,24,24,8;...], shift the triangle down one row, inserting "1" at (0,0) = triangle Q. Then lim:_{n->oo} Q^n generates a one-column vector [1, 1, 4, 28, 352,...] such that A038208 * the vector = [1, 4, 28,...].
%Y Cf. A038208.
%K nonn,more
%O 1,2
%A _Gary W. Adamson_, Sep 06 2009
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