n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 23 |
4 | 65 |
5 | 182 |
6 | 511 |
7 | 1435 |
8 | 4028 |
9 | 11307 |
10 | 31741 |
11 | 89102 |
12 | 250123 |
13 | 702135 |
14 | 1971004 |
15 | 5532919 |
16 | 15531777 |
17 | 43600150 |
18 | 122392503 |
19 | 343575075 |
20 | 964469468 |
21 | 2707418035 |
22 | 7600149781 |
23 | 21334820094 |
24 | 59890207635 |
25 | 168121266303 |
26 | 471942931900 |
27 | 1324818304479 |
28 | 3718974098873 |
[1,3,8,23,65,182,511,1435,4028,11307,31741,89102, 250123,702135,1971004,5532919,15531777,43600150, 122392503,343575075,964469468,2707418035, 7600149781,21334820094,59890207635,168121266303, 471942931900,1324818304479,3718974098873] |