n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 9 |
6 | 20 |
7 | 47 |
8 | 110 |
9 | 260 |
10 | 614 |
11 | 1448 |
12 | 3421 |
13 | 8081 |
14 | 19092 |
15 | 45107 |
16 | 106567 |
17 | 251768 |
18 | 594816 |
19 | 1405285 |
20 | 3320066 |
21 | 7843851 |
22 | 18531547 |
23 | 43781846 |
24 | 103437135 |
25 | 244376187 |
26 | 577352823 |
27 | 1364029309 |
28 | 3222597827 |
29 | 7613573030 |
30 | 17987504932 |
31 | 42496516727 |
32 | 100400469160 |
[1,1,2,4,9,20,47,110,260,614,1448,3421,8081,19092, 45107,106567,251768,594816,1405285,3320066, 7843851,18531547,43781846,103437135,244376187, 577352823,1364029309,3222597827,7613573030, 17987504932,42496516727,100400469160] |