A290054 - OEIS

A290054 as a triangular array

1

1 0

1 1 0

1 2 0 0

1 3 1 0 0

1 4 3 0 0 0

1 5 6 1 0 0 0

1 6 10 4 0 0 0 0

1 7 15 10 1 0 0 0 0

1 8 21 20 5 0 0 0 1 0

1 9 28 35 15 1 0 0 2 0 0

1 10 36 56 35 6 0 0 3 2 0 0

1 11 45 84 70 21 1 0 4 6 0 0 0

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

0 1 2 3 4 5 6 7 8 9 10 11

0 0 1 3 6 10 15 21 28 36 45

0 0 0 1 4 10 20 35 56 84

0 0 0 0 1 5 15 35 70

0 0 0 0 0 1 6 21

0 0 0 0 0 0 1

0 0 0 0 0 0

0 1 2 3 4

0 0 2 6

0 0 0

0 0

0