A253830 - OEIS

A253830 as a triangular array

1

0 1

0 1 1

0 1 1 2

0 1 1 3 2

0 1 1 4 3 3

0 1 1 5 4 5 4

0 1 1 6 5 7 8 4

0 1 1 7 6 9 13 10 6

0 1 1 8 7 11 19 16 13 8

0 1 1 9 8 13 26 23 22 18 10

0 1 1 10 9 15 34 31 33 31 25 12

0 1 1 11 10 17 43 40 46 47 47 30 15

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

1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1

2 3 4 5 6 7 8 9 10 11

2 3 4 5 6 7 8 9 10

3 5 7 9 11 13 15 17

4 8 13 19 26 34 43

4 10 16 23 31 40

6 13 22 33 46

8 18 31 47

10 25 47

12 30

15