n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 2 |
6 | 2 |
7 | 6 |
8 | 5 |
9 | 21 |
10 | 18 |
11 | 70 |
12 | 61 |
13 | 239 |
14 | 206 |
15 | 828 |
16 | 711 |
17 | 2903 |
18 | 2485 |
19 | 10314 |
20 | 8791 |
21 | 37031 |
22 | 31451 |
23 | 134147 |
24 | 113566 |
25 | 489672 |
26 | 413419 |
27 | 1799084 |
28 | 1515282 |
29 | 6647009 |
30 | 5586834 |
31 | 24677902 |
32 | 20703840 |
33 | 92009606 |
34 | 77067674 |
35 | 344336294 |
36 | 288001040 |
37 | 1292929699 |
38 | 1079999410 |
39 | 4869184237 |
40 | 4062534430 |
[0,0,1,0,2,2,6,5,21,18,70,61,239,206,828,711,2903, 2485,10314,8791,37031,31451,134147,113566,489672, 413419,1799084,1515282,6647009,5586834,24677902, 20703840,92009606,77067674,344336294,288001040, 1292929699,1079999410,4869184237,4062534430] |