n | a(n) |
---|---|
1 | 2 |
2 | 10 |
3 | 29 |
4 | 86 |
5 | 240 |
6 | 626 |
7 | 1603 |
8 | 4030 |
9 | 9973 |
10 | 24388 |
11 | 59068 |
12 | 141920 |
13 | 338689 |
14 | 803630 |
15 | 1897359 |
16 | 4460226 |
17 | 10444904 |
18 | 24376990 |
19 | 56720671 |
20 | 131619998 |
21 | 304674313 |
22 | 703690416 |
23 | 1621976820 |
24 | 3731637260 |
25 | 8570604669 |
26 | 19653441614 |
27 | 45002040707 |
[2,10,29,86,240,626,1603,4030,9973,24388,59068, 141920,338689,803630,1897359,4460226,10444904, 24376990,56720671,131619998,304674313,703690416, 1621976820,3731637260,8570604669,19653441614, 45002040707] |