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A135184 A000012 * A128229^2. 1
1, 3, 1, 5, 5, 1, 5, 11, 7, 1, 5, 11, 19, 9, 1, 5, 11, 19, 9, 1, 5, 11, 19, 29, 11, 1, 5, 11, 19, 29, 41, 13, 1, 5, 11, 19, 19, 41, 55, 15, 1, 5, 11, 19, 29, 41, 55, 71, 17, 1, 5, 11, 19, 29, 41, 55, 71, 89, 19, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A006527: (1, 4, 11, 24, 45, 76,...).

LINKS

Table of n, a(n) for n=1..60.

FORMULA

A000012 * A128229^2 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

3, 1;

5, 5, 1;

5, 11, 7, 1;

5, 11, 19, 9, 1;

5, 11, 19, 29, 11, 1;

5, 11, 19, 29, 41, 13, 1;

5, 11, 19, 29, 41, 55, 15, 1;

...

CROSSREFS

Cf. A128229, A006527.

Sequence in context: A096975 A145174 A228785 * A210224 A131304 A131302

Adjacent sequences:  A135181 A135182 A135183 * A135185 A135186 A135187

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 21 2007

STATUS

approved

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Last modified October 23 16:15 EDT 2018. Contains 316529 sequences. (Running on oeis4.)