A048720 - OEIS

A048720 as a triangular array

0

0 0

0 1 0

0 2 2 0

0 3 4 3 0

0 4 6 6 4 0

0 5 8 5 8 5 0

0 6 10 12 12 10 6 0

0 7 12 15 16 15 12 7 0

0 8 14 10 20 20 10 14 8 0

0 9 16 9 24 17 24 9 16 9 0

0 10 18 24 28 30 30 28 24 18 10 0

0 11 20 27 32 27 20 27 32 27 20 11 0

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

0 1 2 3 4 5 6 7 8 9 10 11

0 2 4 6 8 10 12 14 16 18 20

0 3 6 5 12 15 10 9 24 27

0 4 8 12 16 20 24 28 32

0 5 10 15 20 17 30 27

0 6 12 10 24 30 20

0 7 14 9 28 27

0 8 16 24 32

0 9 18 27

0 10 20

0 11

0