n | a(n) |
---|---|
1 | 1 |
2 | 244 |
3 | 8020 |
4 | 108020 |
5 | 867395 |
6 | 4951496 |
7 | 22161864 |
8 | 82628040 |
9 | 267156165 |
10 | 770440540 |
11 | 2022773116 |
12 | 4909947484 |
13 | 11150268935 |
14 | 23913084560 |
15 | 48796284560 |
16 | 95322158736 |
17 | 179163294729 |
18 | 325374464580 |
19 | 572984364580 |
20 | 981394464580 |
21 | 1639143014731 |
22 | 2675722491224 |
23 | 4277290592600 |
[1,244,8020,108020,867395,4951496,22161864, 82628040,267156165,770440540,2022773116, 4909947484,11150268935,23913084560,48796284560, 95322158736,179163294729,325374464580, 572984364580,981394464580,1639143014731, 2675722491224,4277290592600] |