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%I #6 Mar 03 2013 13:08:30
%S 1,2,0,2,1,0,4,0,1,0,2,1,1,1,0,8,3,0,0,1,0,2,1,1,1,1,1,0,10,0,5,0,1,0,
%T 1,0,8,7,0,1,1,0,1,1,0,12,5,6,5,0,0,10,1,0,2,1,1,1,1,1,1,1,1,1,0,34,
%U 10,10,0,7,0,10,0,0,1,0
%N Triangle read by rows, A156834 * A054521
%C Left border = A157019: (1, 2, 2, 4, 2, 8, 2, 10,...).
%F Triangle read by rows, A156834 * A054521; as infinite lower triangular matrices.
%e First few rows of the triangle =
%e 1;
%e 2, 0;
%e 2, 1, 0;
%e 4, 0, 1, 0;
%e 2, 1, 1, 1, 0;
%e 8, 3, 0, 0, 1, 0;
%e 2, 1, 1, 1, 1, 1, 0;
%e 10, 0, 5, 0, 1, 0, 1, 0;
%e 8, 7, 0, 1, 1, 0, 1, 1, 0;
%e 12, 5, 6, 5, 0, 0, 10, 1, 0;
%e 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0;
%e 34, 10, 10, 0, 7, 0, 1, 0, 0, 0, 1, 0;
%e 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0;
%e ...
%Y Cf. A156834 (row sums), A054521.
%K nonn,tabl,more
%O 1,2
%A _Gary W. Adamson_ and _Mats Granvik_, Feb 21 2009
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