A166279 - OEIS

A166279 as a triangular array

1

1 1

1 2 1

1 1 1 1

1 2 2 2 1

1 1 0 0 1 1

1 2 1 0 1 2 1

1 1 1 1 1 1 1 1

1 2 2 2 2 2 2 2 1

1 1 0 0 0 0 0 0 1 1

1 2 1 0 0 0 0 0 1 2 1

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

1 2 2 2 1 0 0 0 1 2 2 2 1

1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 1 2 1 2 1 2 1 2 1 2

1 1 2 0 1 1 2 0 1 1 2

1 2 0 0 1 2 0 0 1 2

1 1 1 1 2 0 0 0 1

1 2 1 2 0 0 0 0

1 1 2 0 0 0 0

1 2 0 0 0 0

1 1 1 1 1

1 2 1 2

1 1 2

1 2

1