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A143517 Triangle read by rows, A054525 * (A061397 * 0^(n-k)), 1<=k<=n. 1
0, 0, 2, 0, 0, 3, 0, -2, 0, 0, 0, 0, 0, 0, 5, 0, -2, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, -5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row sums = A137851: (0, 2, 3, -2, 5, -5, 7, 0, -3,...).

Right border = A061397: (0, 2, 3, 0, 5, 0, 7,...).

LINKS

Table of n, a(n) for n=1..91.

FORMULA

Triangle read by rows, A054525 * (A061397 * 0^(n-k)), 1<=k<=n

EXAMPLE

First few rows of the triangle =

0;

0, 2;

0, 0, 3;

0, -2, 0, 0;

0, 0, 0, 0, 5;

0, -2, -3, 0, 0, 0;

0, 0, 0, 0, 0, 0, 7;

...

CROSSREFS

Cf. A054525, A061397, A137851.

Sequence in context: A029302 A263415 A321459 * A145352 A086834 A332342

Adjacent sequences:  A143514 A143515 A143516 * A143518 A143519 A143520

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson, Aug 22 2008

STATUS

approved

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Last modified November 30 11:07 EST 2021. Contains 349419 sequences. (Running on oeis4.)