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A145972 Triangle read by rows, A000012 * A053121 2

%I #3 Mar 03 2013 13:58:38

%S 1,1,1,2,1,1,2,3,1,1,4,3,4,1,1,4,8,4,5,1,1,9,8,13,5,6,1,1,9,22,13,19,

%T 6,7,1,1,23,22,41,19,26,7,8,1,1,23,64,41,67,26,34,8,9,1,1,65,64,131,

%U 67,101,34,43,9,10,1,1

%N Triangle read by rows, A000012 * A053121

%C Row sums = A036256: (1, 2, 4, 7, 13, 23, 43,...).

%F Triangle read by rows, A000012 * A053121, = partial sums of column terms of triangle A053121.

%e A053121 starts:

%e 1;

%e 0, 1;

%e 1, 0, 1;

%e 0, 2, 0, 1;

%e ...

%e Taking partial sums from the top, we get A145972:

%e 1;

%e 1, 1;

%e 2, 1, 1;

%e 2, 3, 1, 1;

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

%e 4, 8, 4, 5, 1, 1;

%e 9, 8, 13, 5, 6, 1, 1;

%e 9, 22, 13, 19, 6, 7, 1, 1;

%e 23, 22, 41, 19, 26, 7, 8, 1, 1;

%e 23, 64, 41, 67, 26, 34, 8, 9, 1, 1;

%e ...

%Y Cf. A036256, A053121

%K nonn,tabl

%O 0,4

%A _Gary W. Adamson_ & _Roger L. Bagula_, Oct 25 2008

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Last modified September 7 13:22 EDT 2024. Contains 375730 sequences. (Running on oeis4.)