A127251 - OEIS

A127251 as a triangular array

1

-2 1

2 -2 1

0 0 0 1

0 0 0 -2 1

0 0 0 0 0 1

0 0 0 0 0 0 1

0 0 0 0 0 0 -2 1

0 0 0 0 0 0 2 -2 1

0 0 0 0 0 0 0 0 0 1

0 0 0 0 0 0 0 0 0 0 1

0 0 0 0 0 0 0 0 0 0 -2 1

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

1 -2 2 0 0 0 0 0 0 0 0 0 0

1 -2 0 0 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0 0 0 0

1 -2 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0

1 -2 2 0 0 0 0

1 -2 0 0 0 0

1 0 0 0 0

1 0 0 0

1 -2 0

1 0

1