A211701 - OEIS

A211701 as a triangular array

1

2 1

3 3 1

4 4 3 1

5 6 5 3 1

6 7 7 5 3 1

7 9 8 8 5 3 1

8 10 11 9 8 5 3 1

9 12 12 12 10 8 5 3 1

10 13 14 13 13 10 8 5 3 1

11 15 16 16 14 14 10 8 5 3 1

12 16 18 18 17 15 14 10 8 5 3 1

13 18 19 20 19

1 2 3 4 5 6 7 8 9 10 11 12 13

1 3 4 6 7 9 10 12 13 15 16 18

1 3 5 7 8 11 12 14 16 18 19

1 3 5 8 9 12 13 16 18 20

1 3 5 8 10 13 14 17 19

1 3 5 8 10 14 15

1 3 5 8 10 14

1 3 5 8 10

1 3 5 8

1 3 5

1 3

1