n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 22 |
5 | 58 |
6 | 158 |
7 | 426 |
8 | 1170 |
9 | 3224 |
10 | 8977 |
11 | 25105 |
12 | 70680 |
13 | 199739 |
14 | 566842 |
15 | 1613454 |
16 | 4605788 |
17 | 13177776 |
18 | 37782903 |
19 | 108522417 |
20 | 312207970 |
21 | 899460505 |
22 | 2594638480 |
23 | 7493254511 |
24 | 21663019843 |
25 | 62687523055 |
26 | 181561095507 |
27 | 526275453283 |
28 | 1526600618192 |
29 | 4431347014046 |
30 | 12516888508178 |
[0,1,3,8,22,58,158,426,1170,3224,8977,25105,70680, 199739,566842,1613454,4605788,13177776,37782903, 108522417,312207970,899460505,2594638480, 7493254511,21663019843,62687523055,181561095507, 526275453283,1526600618192,4431347014046, 12516888508178] |