n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 8 |
5 | 20 |
6 | 58 |
7 | 169 |
8 | 526 |
9 | 1667 |
10 | 5448 |
11 | 18084 |
12 | 61108 |
13 | 208960 |
14 | 723354 |
15 | 2527074 |
16 | 8908546 |
17 | 31630390 |
18 | 113093022 |
19 | 406680465 |
20 | 1470597342 |
21 | 5342750699 |
22 | 19499227828 |
23 | 71442850111 |
24 | 262754984020 |
25 | 969548468960 |
26 | 3589093760726 |
27 | 13323571588607 |
28 | 49596793134484 |
[1,1,2,3,8,20,58,169,526,1667,5448,18084,61108, 208960,723354,2527074,8908546,31630390,113093022, 406680465,1470597342,5342750699,19499227828, 71442850111,262754984020,969548468960, 3589093760726,13323571588607,49596793134484] |