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A161362 Triangle read by rows, self-convolution of A161361, row sums = A000521 3
1, 372, 372, 29250, 138384, 29250, -134120, 10881000, 10881000, -134120, 54261375, -49892640, 855562500, -49892640, 54261375, -6139293372, 20185231500, -3923010000, -3923010000, 20185231500, -6139293372 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Sum of n-th row terms = A000521(n-1).

LINKS

Table of n, a(n) for n=0..20.

FORMULA

Antidiagonals of a table, A161361^2, where A161361 = the convolution square root of A000521.

EXAMPLE

First few rows of the triangle =

1;

372, 372;

29250, 138384, 29250;

-134120, 10881000, 10881000, -134120;

54261375, -49892640, 855562500, -49892640, 54261375;

-6139293372, 20185231500, -3923010000, -3923010000, 20185231500, -6139293372;

...

The multiplication table by rows:

.......1,.......372,.....29250,...

.....372,.....38384,..10881000,...

...29250,..10881000...

.-134120...

...

Take antidiagonals such that row 2 = (29250, 138384, 29250), sum = 196884

= A000521(2).

CROSSREFS

Cf. A000521, A161362

Sequence in context: A165330 A051182 A281860 * A203924 A004021 A240249

Adjacent sequences:  A161359 A161360 A161361 * A161363 A161364 A161365

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson and Alexander R. Povolotsky, Jun 07 2009

STATUS

approved

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Last modified August 8 19:29 EDT 2020. Contains 336298 sequences. (Running on oeis4.)