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A131335 A000012 * A131334. 5

%I #2 Mar 30 2012 17:25:22

%S 1,1,1,2,1,1,2,2,2,1,3,2,4,2,1,3,3,6,4,3,1,4,3,9,6,7,3,1,4,4,12,9,13,

%T 7,4,1,5,4,16,12,22,13,11,4,1,5,5,20,16,34,22,24,11,5,1

%N A000012 * A131334.

%C Row sums = A000071, Fibonacci numbers - 1, starting (1, 2, 4, 7, 12, 20, 33,...).

%F A000012 * A131334 as infinite lower triangular matrices, where A000012 = (1; 1,1; 1,1,1;...).

%e First few rows of the triangle are:

%e 1;

%e 1, 1;

%e 2, 1, 1;

%e 2, 2, 2, 1;

%e 3, 2, 4, 2, 1;

%e 3, 3, 6, 4, 3, 1;

%e 4, 3, 9, 6, 7, 3, 1;

%e ...

%Y Cf. A000071, A131334, A000012, A131332, A131333.

%K nonn,tabl

%O 1,4

%A _Gary W. Adamson_, Jun 29 2007

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Last modified May 1 06:40 EDT 2024. Contains 372148 sequences. (Running on oeis4.)