n | a(n) |
---|---|
2 | 1 |
3 | 3 |
4 | 11 |
5 | 46 |
6 | 211 |
7 | 1037 |
8 | 5377 |
9 | 29101 |
10 | 163120 |
11 | 941480 |
12 | 5570280 |
13 | 33664996 |
14 | 207249719 |
15 | 1296670793 |
16 | 8229378293 |
17 | 52895993341 |
18 | 343891293422 |
19 | 2258771535962 |
20 | 14974619271658 |
21 | 100117092310368 |
22 | 674548712552456 |
23 | 4577138309318008 |
24 | 31261253291922136 |
25 | 214800030086785976 |
[1,3,11,46,211,1037,5377,29101,163120,941480, 5570280,33664996,207249719,1296670793,8229378293, 52895993341,343891293422,2258771535962, 14974619271658,100117092310368,674548712552456, 4577138309318008,31261253291922136, 214800030086785976] |