A132073 - OEIS

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A132073

A007318 + A131821 - A103451 as infinite lower triangular matrices.

1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 7, 5, 5, 6, 6, 11, 11, 6, 6, 7, 7, 16, 21, 16, 7, 7, 8, 8, 22, 36, 36, 22, 8, 8, 9, 9, 29, 57, 71, 57, 29, 9, 9, 10, 10, 37, 85, 127, 127, 85, 37, 10, 10

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

OFFSET

0,2

COMMENTS

Row sums = A132074: (1, 4, 9, 16, 27, 46, 81, 148, 279, ...).

LINKS

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

EXAMPLE

First few rows of the triangle:

2, 2;

3, 3, 3;

4, 4, 4, 4;