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A127953 Triangle, A097805 * A126615. 0
1, -2, 2, -2, -1, 3, -2, -4, 2, 4, -2, -7, -3, 7, 5, -2, -10, -12, 4, 14, 6, -2, -13, -25, -10, 20, 23, 7, -2, -16, -42, -40, 10, 48, 34, 8, -2, -19, -63, -91, -35, 63, 91, 47, 9, -2, -22, -88, -168, -140, 28, 168, 152, 62, 10 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = (1, 0, 0, 0,...)

LINKS

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

FORMULA

A097805 * A126615 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

-2, 2;

-2, -1, 3;

-2, -4, 2, 4;

-2, -7, -3, 7, 5;

-2, -10, -12, 4, 14, 6;

-2, -13, -25, -10, 20, 23, 7;

...

CROSSREFS

Cf. A097805, A126615.

Sequence in context: A325034 A275853 A324100 * A260418 A280919 A209266

Adjacent sequences:  A127950 A127951 A127952 * A127954 A127955 A127956

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson, Feb 09 2007

STATUS

approved

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Last modified July 17 02:51 EDT 2019. Contains 325092 sequences. (Running on oeis4.)