A072741 - OEIS

A072741 as a triangular array

0

0 1

0 2 3

0 0 4 5

0 0 1 6 7

0 0 1 2 8 9

0 0 1 3 4 10 11

0 0 1 1 5 6 12 13

0 0 1 1 2 7 8 14 15

0 0 1 1 2 3 9 10 16 17

0 0 1 1 2 4 5 11 12 18 19

0 0 1 1 2 2 6 7 13 14 20 21

0 0 1 1 2 2 3 8 9 15 16 22 23

0 0 1

0 0 0 0 0 0 0 0 0 0 0 0 0 0

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

3 4 1 1 1 1 1 1 1 1 1 1

5 6 2 3 1 1 1 1 1 1

7 8 4 5 2 2 2 2 2

9 10 6 7 3 4 2 2

11 12 8 9 5 6 3

13 14 10 11 7 8

15 16 12 13 9

17 18 14 15

19 20 16

21 22

23