n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 40 |
6 | 116 |
7 | 341 |
8 | 1010 |
9 | 3009 |
10 | 9012 |
11 | 27087 |
12 | 81658 |
13 | 246841 |
14 | 747728 |
15 | 2269137 |
16 | 6897656 |
17 | 20996048 |
18 | 63988866 |
19 | 195237052 |
20 | 596265104 |
21 | 1822623729 |
22 | 5575826696 |
23 | 17069972962 |
24 | 52292860854 |
25 | 160295112707 |
26 | 491629937802 |
27 | 1508617457047 |
28 | 4631590611528 |
29 | 14225646628664 |
[1,1,2,5,14,40,116,341,1010,3009,9012,27087,81658, 246841,747728,2269137,6897656,20996048,63988866, 195237052,596265104,1822623729,5575826696, 17069972962,52292860854,160295112707,491629937802, 1508617457047,4631590611528,14225646628664] |