n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 3 |
6 | 1 |
7 | 6 |
8 | 9 |
9 | 15 |
10 | 34 |
11 | 63 |
12 | 114 |
13 | 206 |
14 | 386 |
15 | 725 |
16 | 1366 |
17 | 2601 |
18 | 4803 |
19 | 9144 |
20 | 17331 |
21 | 33106 |
22 | 63067 |
23 | 121112 |
24 | 233785 |
25 | 447721 |
26 | 860033 |
27 | 1659656 |
28 | 3200843 |
29 | 6188292 |
30 | 11966122 |
31 | 23175696 |
32 | 44928209 |
33 | 87187514 |
34 | 169331564 |
35 | 329134246 |
[0,0,0,1,3,1,6,9,15,34,63,114,206,386,725,1366, 2601,4803,9144,17331,33106,63067,121112,233785, 447721,860033,1659656,3200843,6188292,11966122, 23175696,44928209,87187514,169331564,329134246] |