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A131767 2*A007318 - A065941. 1
1, 1, 1, 1, 3, 1, 1, 5, 4, 1, 1, 7, 9, 6, 1, 1, 9, 16, 17, 7, 1, 1, 11, 25, 36, 24, 9, 1, 1, 13, 36, 65, 60, 36, 10, 1, 1, 15, 49, 106, 125, 102, 46, 12, 1, 1, 17, 64, 161, 231, 237, 148, 62, 13, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

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

FORMULA

2*A007318 - A065941 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

1, 3, 1;

1, 5, 4, 1;

1, 7, 9, 6, 1;

1, 9, 16, 17, 7, 1;

1, 11, 25, 36, 24, 9, 1;

...

CROSSREFS

Cf. A007318, A065941, A027934 (row sums).

Sequence in context: A191751 A285409 A208510 * A026780 A209421 A320435

Adjacent sequences:  A131764 A131765 A131766 * A131768 A131769 A131770

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jul 13 2007

STATUS

approved

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Last modified October 20 20:24 EDT 2019. Contains 328273 sequences. (Running on oeis4.)