A138015 - OEIS

A138015

Triangle read by rows, antidiagonals of an array formed by A000012 * A136579. Replace the term "n" in the correlation triangle A003983 with A003422(n).

1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 4, 2, 1, 1, 2, 4, 4, 2, 1, 1, 2, 4, 10, 4, 2, 1, 1, 2, 4, 10, 10, 4, 2, 1, 1, 2, 4, 10, 34, 10, 4, 2, 1, 1, 2, 4, 10, 34, 34, 10, 4, 2, 1, 1, 2, 4, 10, 34, 154, 34, 10, 4, 2, 1, 1, 2, 4, 10, 34, 154, 154, 34, 10, 4, 2, 1

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OFFSET

1,5

COMMENTS

A003422 = (0, 1, 2, 4, 10, 34, 154, ...).

Row sums = A138016: (1, 2, 4, 6, 10, 14, 24, 34, 68, 102, ...).

LINKS

Table of n, a(n) for n=1..78.

EXAMPLE

First few rows of the triangle:

1, 1;

1, 2, 1;