A144219 - OEIS

A144219 as a triangular array

1

1 1

0 1 2

1 0 2 3

0 1 0 3 6

0 0 2 0 6 10

0 0 0 3 0 10 18

1 0 0 0 6 0 18 31

0 1 0 0 0 10 0 31 56

0 0 2 0 0 0 18 0 56 98

0 0 0 3 0 0 0 31 0 98 174

0 0 0 0 6 0 0 0 56 0 174 306

0 0 0 0 0 10 0 0 98 0 306 542 0

0

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

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

2 2 0 2 0 0 0 2 0 0 0

3 3 0 3 0 0 0 3 0 0

6 6 0 6 0 0 0 6 0

10 10 0 10 0 0 0 10

18 18 0 18 0 0 0

31 31 0 31 0 0

56 56 0 56 98

98 98 0 0

174 174 306

306 542

0