A130297 - OEIS

A130297

A130296^2.

1, 4, 1, 8, 2, 1, 13, 3, 2, 1, 19, 4, 3, 2, 1, 26, 5, 4, 3, 2, 1, 34, 6, 5, 4, 3, 2, 1, 43, 7, 6, 5, 4, 3, 2, 1, 53, 8, 7, 6, 5, 4, 3, 2, 1, 64, 9, 8, 7, 6, 5, 4, 3, 2, 1

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OFFSET

1,2

COMMENTS

Left border = A034856: (1, 4, 8, 13, 19, 26, 34, ...).

Row sums = A028387: (1, 5, 11, 19, 29, 41, 55, ...).

LINKS

Table of n, a(n) for n=1..55.

FORMULA

Square of A130296 as an infinite lower triangular matrix.

EXAMPLE

First few rows of the triangle:

4, 1;

8, 2, 1;

13, 3, 2, 1;

19, 4, 3, 2, 1;

26, 5, 4, 3, 2, 1;

...

CROSSREFS

Cf. A130296, A034856, A028387.

Sequence in context: A370614 A134829 A245966 * A271478 A112032 A199049

Adjacent sequences: A130294 A130295 A130296 * A130298 A130299 A130300

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 20 2007

STATUS

approved