n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 16 |
6 | 63 |
7 | 293 |
8 | 1561 |
9 | 9321 |
10 | 61436 |
11 | 442134 |
12 | 3446077 |
13 | 28905485 |
14 | 259585900 |
15 | 2485120780 |
16 | 25267283367 |
17 | 271949606805 |
18 | 3089330120711 |
19 | 36943477086287 |
20 | 463943009361687 |
21 | 6105064699310785 |
22 | 84011389289865102 |
[1,1,1,2,5,16,63,293,1561,9321,61436,442134, 3446077,28905485,259585900,2485120780,25267283367, 271949606805,3089330120711,36943477086287, 463943009361687,6105064699310785, 84011389289865102] |