n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 11 |
4 | 50 |
5 | 261 |
6 | 1362 |
7 | 7344 |
8 | 40112 |
9 | 222338 |
10 | 1245476 |
11 | 7043605 |
12 | 40153390 |
13 | 230518723 |
14 | 1331576430 |
15 | 7733934030 |
16 | 45138530004 |
17 | 264596552838 |
18 | 1557101158092 |
19 | 9195520745412 |
20 | 54477134410680 |
21 | 323668083179382 |
22 | 1928047124332764 |
23 | 11512382184408072 |
24 | 68889282756213840 |
[1,2,11,50,261,1362,7344,40112,222338,1245476, 7043605,40153390,230518723,1331576430,7733934030, 45138530004,264596552838,1557101158092, 9195520745412,54477134410680,323668083179382, 1928047124332764,11512382184408072, 68889282756213840] |