n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 20 |
4 | 119 |
5 | 715 |
6 | 4523 |
7 | 30509 |
8 | 213343 |
9 | 1530983 |
10 | 11203550 |
11 | 83064263 |
12 | 620498643 |
13 | 4643259527 |
14 | 34592032908 |
15 | 254639722327 |
16 | 1832740718223 |
17 | 12680919388801 |
18 | 81678704122892 |
19 | 452951221016511 |
20 | 1574800035301944 |
21 | 8395299939524712 |
22 | 282240813012897282 |
23 | 4457697545906326118 |
24 | 58106920364272792945 |
25 | 693274802905577732102 |
26 | 7864635685729658131835 |
[0,3,20,119,715,4523,30509,213343,1530983, 11203550,83064263,620498643,4643259527, 34592032908,254639722327,1832740718223, 12680919388801,81678704122892,452951221016511, 1574800035301944,8395299939524712, 282240813012897282,4457697545906326118, 58106920364272792945,693274802905577732102, 7864635685729658131835] |