A317023 - OEIS

A317023 as a triangular array

1

1 0

1 2 0

1 3 2 0

1 4 6 2 0

1 5 10 9 2 0

1 6 15 20 12 2 0

1 7 21 35 34 15 2 0

1 8 28 56 70 52 18 2 0

1 9 36 84 126 125 74 21 2 0

1 10 45 120 210 252 205 100 24 2 0

1 11 55 165 330 462 461 315 130 27 2 0

1 12 66

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

0 2 3 4 5 6 7 8 9 10 11 12

0 2 6 10 15 21 28 36 45 55 66

0 2 9 20 35 56 84 120 165

0 2 12 34 70 126 210 330

0 2 15 52 125 252 462

0 2 18 74 205 461

0 2 21 100 315

0 2 24 130

0 2 27

0 2

0