A180834 - OEIS

A180834 as a triangular array

0

0 0

0 0 0

0 0 0 0

0 0 0 0 1

0 0 0 0 0 0

0 0 0 0 2 2 2

0 0 0 0 5 5 8 2

0 0 0 0 3 13 30 8 2

0 0 0 0 7 29 103 69 25 1

0 0 0 0 4 55 286 302 197 27 4

0 0 0 0 9 98 715 1252 1182 311 58 2

0 0 0 0 15 166 1634 4260 5910

0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

1 0 2 5 3 7 4 9 15

0 2 5 13 29 55 98 166

2 8 30 103 286 715 1634

2 8 69 302 1252 4260

2 25 197 1182 5910

1 27 311

4 58

2