A053121 - OEIS

A053121 as a triangular array

1

0 1

1 0 1

0 2 0 1

2 0 3 0 1

0 5 0 4 0 1

5 0 9 0 5 0 1

0 14 0 14 0 6 0 1

14 0 28 0 20 0 7 0 1

0 42 0 48 0 27 0 8 0 1

42 0 90 0 75 0 35 0 9 0 1

0 132 0 165 0 110 0 44 0 10 0 1

132 0 297 0 275 0 154 0 54 0 11 0

1 0 1 0 2 0 5 0 14 0 42 0 132

1 0 2 0 5 0 14 0 42 0 132 0

1 0 3 0 9 0 28 0 90 0 297

1 0 4 0 14 0 48 0 165 0

1 0 5 0 20 0 75 0 275

1 0 6 0 27 0 110 0

1 0 7 0 35 0 154

1 0 8 0 44 0

1 0 9 0 54

1 0 10 0

1 0 11

1 0