n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 8 |
4 | 34 |
5 | 91 |
6 | 386 |
7 | 1205 |
8 | 5146 |
9 | 17422 |
10 | 75144 |
11 | 267296 |
12 | 1161554 |
13 | 4276938 |
14 | 18677450 |
15 | 70571075 |
16 | 309208856 |
17 | 1191846297 |
18 | 5234648979 |
19 | 20497505744 |
20 | 90190143442 |
21 | 357689841471 |
22 | 1576087185005 |
23 | 6316705181733 |
24 | 27864624569679 |
25 | 112664602409092 |
26 | 497446084425379 |
27 | 2026418825472279 |
28 | 8953939800573176 |
[1,1,4,8,34,91,386,1205,5146,17422,75144,267296, 1161554,4276938,18677450,70571075,309208856, 1191846297,5234648979,20497505744,90190143442, 357689841471,1576087185005,6316705181733, 27864624569679,112664602409092,497446084425379, 2026418825472279,8953939800573176] |