n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 52 |
6 | 188 |
7 | 673 |
8 | 2528 |
9 | 9448 |
10 | 36232 |
11 | 138642 |
12 | 538502 |
13 | 2089746 |
14 | 8183600 |
15 | 32039011 |
16 | 126154812 |
17 | 496759140 |
18 | 1963415328 |
19 | 7761746678 |
20 | 30760767292 |
21 | 121938877154 |
22 | 484214723920 |
23 | 1923302168038 |
24 | 7648666905624 |
25 | 30425224701788 |
26 | 121132809344714 |
27 | 482381656899028 |
28 | 1922197151700130 |
[1,1,2,5,16,52,188,673,2528,9448,36232,138642, 538502,2089746,8183600,32039011,126154812, 496759140,1963415328,7761746678,30760767292, 121938877154,484214723920,1923302168038, 7648666905624,30425224701788,121132809344714, 482381656899028,1922197151700130] |