A131427 - OEIS

A131427 as a triangular array

1

0 1

0 0 2

0 0 0 5

0 0 0 0 14

0 0 0 0 0 42

0 0 0 0 0 0 132

0 0 0 0 0 0 0 429

0 0 0 0 0 0 0 0 1430

0 0 0 0 0 0 0 0 0 4862

0 0 0 0 0 0 0 0 0 0 16796

0 0 0 0 0 0 0 0 0 0 0 58786

0 0 0 0 0 0 0 0 0 0 0 0 208012

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

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

2 0 0 0 0 0 0 0 0 0 0

5 0 0 0 0 0 0 0 0 0

14 0 0 0 0 0 0 0 0

42 0 0 0 0 0 0 0

132 0 0 0 0 0 0

429 0 0 0 0 0

1430 0 0 0 0

4862 0 0 0

16796 0 0

58786 0

208012