n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 31 |
5 | 101 |
6 | 336 |
7 | 1128 |
8 | 3823 |
9 | 13051 |
10 | 44803 |
11 | 154518 |
12 | 534964 |
13 | 1858156 |
14 | 6472168 |
15 | 22597760 |
16 | 79067375 |
17 | 277164295 |
18 | 973184313 |
19 | 3422117190 |
20 | 12049586631 |
21 | 42478745781 |
22 | 149915252028 |
23 | 529606271560 |
24 | 1872653175556 |
25 | 6627147599476 |
26 | 23471065878276 |
27 | 83186110269928 |
[1,1,3,10,31,101,336,1128,3823,13051,44803,154518, 534964,1858156,6472168,22597760,79067375, 277164295,973184313,3422117190,12049586631, 42478745781,149915252028,529606271560, 1872653175556,6627147599476,23471065878276, 83186110269928] |