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%I #2 Mar 30 2012 18:37:15
%S 1,3,18,150,1546,18642,254690,3861782,64059002,1150296082,22180511810,
%T 456345207854,9966036502994,230031203755906,5591166290510722,
%U 142661974171422254,3810825154126609202,106314217107440685858
%N Column 2 of triangle A152406; also, column 0 of matrix cube of A152406.
%C Matrix powers of triangle T=A152406 satisfy:
%C column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.
%Y Cf. A152406; A152407, A152408, A152410.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Dec 05 2008
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