n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 23 |
5 | 95 |
6 | 481 |
7 | 2515 |
8 | 13130 |
9 | 77546 |
10 | 519770 |
11 | 3641724 |
12 | 25931163 |
13 | 185418629 |
14 | 1411248697 |
15 | 11735504788 |
16 | 103340890753 |
17 | 931471895697 |
18 | 8448978391755 |
19 | 76541843977198 |
20 | 715994685630321 |
21 | 7110500945450780 |
22 | 74757652968961770 |
23 | 815423663501064107 |
24 | 9012653697655462141 |
[1,1,2,7,23,95,481,2515,13130,77546,519770, 3641724,25931163,185418629,1411248697,11735504788, 103340890753,931471895697,8448978391755, 76541843977198,715994685630321,7110500945450780, 74757652968961770,815423663501064107, 9012653697655462141] |