n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 12 |
5 | 59 |
6 | 331 |
7 | 2062 |
8 | 13945 |
9 | 100981 |
10 | 775099 |
11 | 6260336 |
12 | 52914052 |
13 | 466062718 |
14 | 4263629043 |
15 | 40404127710 |
16 | 395772643255 |
17 | 4000017157615 |
18 | 41650278419675 |
19 | 446222379390064 |
20 | 4913287373304033 |
21 | 55545290608129184 |
22 | 644152152145611596 |
[1,1,3,12,59,331,2062,13945,100981,775099,6260336, 52914052,466062718,4263629043,40404127710, 395772643255,4000017157615,41650278419675, 446222379390064,4913287373304033, 55545290608129184,644152152145611596] |