n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 22 |
7 | 60 |
8 | 158 |
9 | 439 |
10 | 1229 |
11 | 3525 |
12 | 10178 |
13 | 29802 |
14 | 87862 |
15 | 261204 |
16 | 781198 |
17 | 2350249 |
18 | 7105081 |
19 | 21577415 |
20 | 65787902 |
21 | 201313311 |
22 | 618040002 |
23 | 1903102730 |
24 | 5876174472 |
25 | 18189503139 |
26 | 56435742554 |
27 | 175477142565 |
28 | 546703920430 |
29 | 1706433403626 |
[1,1,2,4,10,22,60,158,439,1229,3525,10178,29802, 87862,261204,781198,2350249,7105081,21577415, 65787902,201313311,618040002,1903102730, 5876174472,18189503139,56435742554,175477142565, 546703920430,1706433403626] |