A153250 - OEIS

A153250 as a triangular array

1

0 2

0 3 4

0 0 5 6

0 0 6 7 9

0 0 0 8 10 11

0 0 0 0 11 12 14

0 0 0 0 14 13 15 16

0 0 0 0 0 15 16 17 19

0 0 0 0 0 0 19 18 20 23

0 0 0 0 0 0 0 20 21 24 25

0 0 0 0 0 0 0 0 22 25 26 28

0 0 0 0 0 0 0 0 0 28 27 29 30

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

2 3 0 0 0 0 0 0 0 0 0 0

4 5 6 0 0 0 0 0 0 0 0

6 7 8 0 0 0 0 0 0 0

9 10 11 14 0 0 0 0 0

11 12 13 15 0 0 0 0

14 15 16 19 0 0 0

16 17 18 20 0 0

19 20 21 22 0

23 24 25 28

25 26 27

28 29

30