n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 9 |
4 | 21 |
5 | 51 |
6 | 126 |
7 | 318 |
8 | 812 |
9 | 2100 |
10 | 5482 |
11 | 14438 |
12 | 38303 |
13 | 102302 |
14 | 274824 |
15 | 742210 |
16 | 2013941 |
17 | 5488239 |
18 | 15014376 |
19 | 41221775 |
20 | 113542455 |
21 | 313681756 |
22 | 868994723 |
23 | 2413526848 |
24 | 6719132105 |
25 | 18746838609 |
26 | 52412080624 |
27 | 146812972155 |
28 | 411977724704 |
29 | 1158006098132 |
[1,2,4,9,21,51,126,318,812,2100,5482,14438,38303, 102302,274824,742210,2013941,5488239,15014376, 41221775,113542455,313681756,868994723,2413526848, 6719132105,18746838609,52412080624,146812972155, 411977724704,1158006098132] |