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%I #5 Jan 27 2022 21:11:25
%S 1,0,1,0,1,1,0,2,3,1,0,5,10,6,1,0,14,36,31,10,1,0,42,135,156,77,15,1,
%T 0,132,518,771,534,169,21,1,0,429,2015,3745,3451,1610,345,28,1,0,1430,
%U 7906,17897,21094,13569,4537,676,36,1,0,4862,31195,84278,123203,103986
%N Triangle, read by rows, given by [0,1,1,1,1,1,1,1,...] DELTA [1,0,1,0,2,0,3,0,4,0,5,0,6,0,...] where DELTA is the operator defined in A084938.
%F Sum_{k=0..n} T(n,k) = A074664(n+1).
%e Triangle begins:
%e 1
%e 0, 1
%e 0, 1, 1
%e 0, 2, 3, 1
%e 0, 5, 10, 6, 1
%e 0, 14, 36, 31, 10, 1
%e ...
%Y Cf. A000108, A074664, A084938.
%K nonn,tabl
%O 0,8
%A _Philippe Deléham_, Feb 08 2010
%E Corrected by _Philippe Deléham_, Feb 08 2010
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