n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 63 |
6 | 296 |
7 | 1623 |
8 | 10176 |
9 | 71793 |
10 | 562848 |
11 | 4853949 |
12 | 45664896 |
13 | 465403791 |
14 | 5108121216 |
15 | 60069714207 |
16 | 753492215808 |
17 | 10042248398625 |
18 | 141712039383552 |
19 | 2110880441637045 |
20 | 33097631526180864 |
21 | 544903371859138335 |
22 | 9398216812334008320 |
23 | 169463659008217238055 |
[1,1,2,5,16,63,296,1623,10176,71793,562848, 4853949,45664896,465403791,5108121216,60069714207, 753492215808,10042248398625,141712039383552, 2110880441637045,33097631526180864, 544903371859138335,9398216812334008320, 169463659008217238055] |