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A131255 A004070 * A000012(signed). 0

%I #4 Feb 18 2022 22:43:33

%S 1,0,1,0,1,1,1,0,2,1,0,1,1,3,1,0,1,1,3,4,1,1,0,2,2,6,5,1,0,1,1,3,5,10,

%T 6,1,0,1,1,3,5,11,15,7,1,1,0,2,2,6,10,21,21,8,1

%N A004070 * A000012(signed).

%C Row sums = A004695 starting (1, 1, 2, 4, 6, 10, 17, 27, 44, 72, ...). A058393 = A000012(signed) * A004070.

%F A004070 * A000012, where A000012 = (1; -1,1; 1,-1,1; ...).

%e First few rows of the triangle:

%e 1;

%e 0, 1;

%e 0, 1, 1;

%e 1, 0, 2, 1;

%e 0, 1, 1, 3, 1;

%e 0, 1, 1, 3, 4, 1;

%e 1, 0, 2, 2, 6, 5, 1;

%e 0, 1, 1, 3, 5, 10, 6, 1;

%e 0, 1, 1, 3, 5, 11, 15, 7, 1;

%e 1, 0, 2, 2, 6, 10, 2, 21, 8, 1;

%e ...

%Y Cf. A004070, A000012, A004695, A058393.

%K nonn,tabl

%O 0,9

%A _Gary W. Adamson_, Jun 23 2007

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