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A130297 A130296^2. 1
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 (list; table; graph; refs; listen; history; text; internal format)
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 are:

1;

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: A106475 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

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Last modified August 15 13:27 EDT 2020. Contains 336504 sequences. (Running on oeis4.)