A113128 - OEIS

A113128 as a triangular array

1

3 2

3 6 3

1 6 9 4

0 2 9 12 5

0 0 3 12 15 6

0 0 0 4 15 18 7

0 0 0 0 5 18 21 8

0 0 0 0 0 6 21 24 9

0 0 0 0 0 0 7 24 27 10

0 0 0 0 0 0 0 8 27 30 11

0 0 0 0 0 0 0 0 9 30 33 12

0 0 0 0 0 0 0 0 0 10 33 36 13

0 0 0 0

1 3 3 1 0 0 0 0 0 0 0 0 0 0

2 6 6 2 0 0 0 0 0 0 0 0 0

3 9 9 3 0 0 0 0 0 0 0 0

4 12 12 4 0 0 0 0 0 0 0

5 15 15 5 0 0 0 0 0

6 18 18 6 0 0 0 0

7 21 21 7 0 0 0

8 24 24 8 0 0

9 27 27 9 0

10 30 30 10

11 33 33

12 36

13