A113408 - OEIS

A113408 as a triangular array

1

0 1

1 0 1

0 2 0 1

2 0 3 0 1

0 6 0 4 0 1

3 0 12 0 5 0 1

0 12 0 20 0 6 0 1

6 0 30 0 30 0 7 0 1

0 30 0 60 0 42 0 8 0 1

10 0 90 0 105 0 56 0 9 0 1

0 60 0 210 0 168 0 72 0 10 0 1

20 0 210 0 420 0 252 0 90 0 11 0 1

1 0 1 0 2 0 3 0 6 0 10 0 20

1 0 2 0 6 0 12 0 30 0 60 0

1 0 3 0 12 0 30 0 90 0 210

1 0 4 0 20 0 60 0 210 0

1 0 5 0 30 0 105 0 420

1 0 6 0 42 0 168 0

1 0 7 0 56 0 252

1 0 8 0 72 0

1 0 9 0 90

1 0 10 0

1 0 11

1 0

1