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A128410 A128408 * A000012. 0
1, -2, -1, -2, -1, -1, 0, 0, 0, 0, -2, -1, -1, -1, -1, 4, 3, 2, 1, 1, 1, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Left border = A008966: (1, -2, -2, 0, -2, 4, -2, 0, 0, 4,...). Row sums = A063441: (1, -3, -4, 0, -6, 12,...) A128409 = A000012 * A128408.

LINKS

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

FORMULA

A128408 * A000012 as infinite lower triangular matrices. Partial row sums of A128408 starting from the right.

EXAMPLE

First few rows of the triangle are:

1;

-2, -1;

-2, -1, -1;

0, 0, 0, 0;

-2, -1, -1, -1, -1;

4, 3, 2, 1, 1, 1;

-2, -1, -1, -1, -1, -1, -1;

...

CROSSREFS

Cf. A128407, A128408, A128409, A008966, A051731, A063441.

Sequence in context: A094645 A105793 A158566 * A059782 A093654 A220115

Adjacent sequences:  A128407 A128408 A128409 * A128411 A128412 A128413

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson, Mar 01 2007

STATUS

approved

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Last modified April 17 03:58 EDT 2021. Contains 343059 sequences. (Running on oeis4.)