n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 13 |
4 | 37 |
5 | 111 |
6 | 346 |
7 | 1100 |
8 | 3557 |
9 | 11683 |
10 | 38926 |
11 | 131154 |
12 | 445765 |
13 | 1526305 |
14 | 5261985 |
15 | 18254431 |
16 | 63672445 |
17 | 223138635 |
18 | 785267758 |
19 | 2774187398 |
20 | 9835528373 |
21 | 34983477901 |
22 | 124795716145 |
23 | 446376963933 |
24 | 1600610895841 |
25 | 5752771831361 |
26 | 20720666878796 |
27 | 74782199279800 |
28 | 270397125942817 |
29 | 979410568546113 |
30 | 3553373294757136 |
[1,2,5,13,37,111,346,1100,3557,11683,38926,131154, 445765,1526305,5261985,18254431,63672445, 223138635,785267758,2774187398,9835528373, 34983477901,124795716145,446376963933, 1600610895841,5752771831361,20720666878796, 74782199279800,270397125942817,979410568546113, 3553373294757136] |