n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 12 |
4 | 29 |
5 | 69 |
6 | 161 |
7 | 376 |
8 | 878 |
9 | 2050 |
10 | 4783 |
11 | 11162 |
12 | 26044 |
13 | 60771 |
14 | 141799 |
15 | 330865 |
16 | 772020 |
17 | 1801380 |
18 | 4203220 |
19 | 9807513 |
20 | 22884198 |
21 | 53396463 |
22 | 124591747 |
23 | 290714077 |
24 | 678332846 |
25 | 1582776641 |
26 | 3693145496 |
27 | 8617339492 |
28 | 20107125483 |
29 | 46916626127 |
[1,2,5,12,29,69,161,376,878,2050,4783,11162,26044, 60771,141799,330865,772020,1801380,4203220, 9807513,22884198,53396463,124591747,290714077, 678332846,1582776641,3693145496,8617339492, 20107125483,46916626127] |