A220504 - OEIS

A220504 as a triangular array

1

2 1

4 0 1

7 2 0 1

12 1 0 0 1

19 4 2 0 0 1

30 3 1 0 0 0 1

45 8 1 2 0 0 0 1

67 7 4 1 0 0 0 0 1

97 15 3 1 2 0 0 0 0 1

139 15 4 1 1 0 0 0 0 0 1

195 27 8 4 1 2 0 0 0 0 0 1

272 29 8 3 1 1 0 0 0 0 0 0 1

1 2 4 7 12 19 30 45 67 97 139 195 272

1 0 2 1 4 3 8 7 15 15 27 29

1 0 0 2 1 1 4 3 4 8 8

1 0 0 0 2 1 1 1 4 3

1 0 0 0 0 2 1 1 1

1 0 0 0 0 0 2 1

1 0 0 0 0 0 0

1 0 0 0 0 0

1 0 0 0 0

1 0 0 0

1 0 0

1 0

1