



1, 2, 0, 2, 1, 0, 3, 2, 0, 0, 3, 2, 1, 0, 0, 3, 3, 2, 0, 0, 0, 3, 3, 2, 2, 0, 0, 0, 3, 3, 3, 4, 0, 0, 0, 0, 3, 3, 3, 4, 1, 0, 0, 0, 0, 3, 3, 3, 6, 2, 0, 0, 0, 0, 0, 3, 3, 3, 6, 2, 2, 0, 0, 0, 0, 0, 3, 3, 3, 6, 3, 4, 0, 0, 0, 0, 0, 0, 3, 3, 3, 6, 3, 4, 2, 0, 0, 0, 0, 0, 0
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OFFSET

0,2


COMMENTS

Row sums = A177445. Rows apparently tend to 3 * A120562 = 3 * (1, 1, 1, 2, 1, 2, 2, 3, 1, 3,...).


LINKS

Table of n, a(n) for n=0..90.


FORMULA

Triangle read by rows, M*Q*R; such that M = an infinite lower triangular matrix with
all 1's, Q = triangle A177444, and R = the diagonalized variant of A120562
(A120562 as the right diagonal and the rest zeros).


EXAMPLE

First few rows of the triangle =
1;
2, 0;
2, 1, 0;
3, 2, 0, 0;
3, 2, 1, 0, 0;
3, 3, 2, 0, 0, 0;
3, 3, 2, 2, 0, 0, 0;
3, 3, 3, 4, 0, 0, 0, 0;
3, 3, 3, 4, 1, 0, 0, 0, 0;
3, 3, 3, 6, 2, 0, 0, 0, 0, 0;
3, 3, 3, 6, 2, 2, 0, 0, 0, 0, 0;
3, 3, 3, 6, 3, 4, 0, 0, 0, 0, 0, 0;
3, 3, 3, 6, 3, 4, 2, 0, 0, 0, 0, 0, 0;
3, 3, 3, 6, 3, 6, 4, 0, 0, 0, 0, 0, 0, 0;
3, 3, 3, 6, 3, 6, 4, 3, 0, 0, 0, 0, 0, 0, 0;
...


CROSSREFS

Cf. A177444, A177445, A120562
Sequence in context: A321361 A319517 A321460 * A074905 A058548 A157030
Adjacent sequences: A177443 A177444 A177445 * A177447 A177448 A177449


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, May 08 2010


STATUS

approved



