A129555 - OEIS

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A129555

A054523 * A129372.

1, 1, 1, 3, 0, 1, 2, 1, 0, 1, 5, 0, 0, 0, 1, 3, 3, 1, 0, 0, 1, 7, 0, 0, 0, 0, 0, 1, 4, 2, 0, 1, 0, 0, 0, 1, 9, 0, 3, 0, 0, 0, 0, 0, 1, 5, 5, 0, 0, 1, 0, 0, 0, 0, 1

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

0,4

COMMENTS

Row sums = A002131: (1, 2, 4, 4, 6, 8, 8, 8, 13, 12, ...). Left column = A016741: (1, 1, 3, 2, 5, 3, 7, ...).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

A054523 * A129372 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle:

1, 1;