A254967 - OEIS

A254967 as a triangular array

1

2 3

2 4 7

0 2 2 9

0 0 2 4 13

0 0 0 2 2 15

2 2 2 2 4 6 21

2 0 2 0 2 2 4 25

2 0 0 2 2 0 2 6 31

0 2 2 2 0 2 2 4 2 33

0 0 2 0 2 2 0 2 2 4 37

0 0 0 2 2 0 2 2 0 2 6 43

2 2 2 2 0 2

1 2 2 0 0 0 2 2 2 0 0 0 2

3 4 2 0 0 2 0 0 2 0 0 2

7 2 2 0 2 2 0 2 2 0 2

9 4 2 2 0 2 2 0 2 2

13 2 4 2 2 0 2 2 0

15 6 2 0 2 2 0 2

21 4 2 2 0 2

25 6 4 2 2

31 2 2 0

33 4 2

37 6

43