n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 28 |
4 | 155 |
5 | 859 |
6 | 4760 |
7 | 26377 |
8 | 146165 |
9 | 809956 |
10 | 4488275 |
11 | 24871243 |
12 | 137821040 |
13 | 763718929 |
14 | 4232057765 |
15 | 23451445612 |
16 | 129953401355 |
17 | 720121343611 |
18 | 3990466922120 |
19 | 22112698641433 |
20 | 122534893973525 |
21 | 679012565791924 |
22 | 3762667510880195 |
23 | 20850375251776747 |
[0,1,5,28,155,859,4760,26377,146165,809956, 4488275,24871243,137821040,763718929,4232057765, 23451445612,129953401355,720121343611, 3990466922120,22112698641433,122534893973525, 679012565791924,3762667510880195, 20850375251776747] |