n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 18 |
5 | 42 |
6 | 100 |
7 | 242 |
8 | 592 |
9 | 1460 |
10 | 3624 |
11 | 9042 |
12 | 22656 |
13 | 56970 |
14 | 143688 |
15 | 363348 |
16 | 920886 |
17 | 2338566 |
18 | 5949148 |
19 | 15157874 |
20 | 38674978 |
21 | 98803052 |
22 | 252701484 |
23 | 646990518 |
24 | 1658066668 |
25 | 4252908542 |
26 | 10917422860 |
27 | 28046438252 |
28 | 72099983802 |
29 | 185469011130 |
30 | 477383400300 |
[1,2,4,8,18,42,100,242,592,1460,3624,9042,22656, 56970,143688,363348,920886,2338566,5949148, 15157874,38674978,98803052,252701484,646990518, 1658066668,4252908542,10917422860,28046438252, 72099983802,185469011130,477383400300] |