n | a(n) |
---|---|
6 | 1 |
7 | 0 |
8 | 1 |
9 | 1 |
10 | 2 |
11 | 2 |
12 | 9 |
13 | 11 |
14 | 37 |
15 | 79 |
16 | 249 |
17 | 671 |
18 | 2182 |
19 | 6692 |
20 | 22131 |
21 | 72405 |
22 | 243806 |
23 | 822788 |
24 | 2815119 |
25 | 9679205 |
26 | 33551192 |
27 | 116900081 |
28 | 409675567 |
29 | 1442454215 |
30 | 5102542680 |
31 | 18124571838 |
32 | 64634480340 |
33 | 231334873091 |
34 | 830828150081 |
35 | 2993489821771 |
[1,0,1,1,2,2,9,11,37,79,249,671,2182,6692,22131, 72405,243806,822788,2815119,9679205,33551192, 116900081,409675567,1442454215,5102542680, 18124571838,64634480340,231334873091,830828150081, 2993489821771] |