A115717 - OEIS

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A115717 as a triangular array

1

0 1

3 -1 1

0 0 0 1

0 4 -1 -1 1

0 0 0 0 0 1

12 -4 4 0 -1 -1 1

0 0 0 0 0 0 0 1

0 0 0 4 0 0 -1 -1 1

0 0 0 0 0 0 0 0 0 1

0 16 -4 -4 4 0 0 0 -1 -1 1

0 0 0 0 0 0 0 0 0 0 0 1

0 0 0 0 0 4 0 0 0 0 -1 -1 1

0 0 0 0 0 0 0 0 0 0 0 0 0 1

48 -16 16 0 -4 -4 4 0 0 0 0 0 -1 -1 1

A115717 as a square array

1 0 3 0 0 0 12 0 0 0 0 0 0 0 48

1 -1 0 4 0 -4 0 0 0 16 0 0 0 -16

1 0 -1 0 4 0 0 0 -4 0 0 0 16

1 -1 0 0 0 4 0 -4 0 0 0 0

1 0 -1 0 0 0 4 0 0 0 -4

1 -1 0 0 0 0 0 4 0 -4

1 0 -1 0 0 0 0 0 4

1 -1 0 0 0 0 0 0

1 0 -1 0 0 0 0

1 -1 0 0 0 0

1 0 -1 0 0

1 -1 0 0

1 0 -1

1 -1

1

A115717 as an upper right triangle