n | a(n) |
---|---|
0 | 1 |
1 | 50 |
2 | 887 |
3 | 8790 |
4 | 59542 |
5 | 307960 |
6 | 1301610 |
7 | 4701698 |
8 | 14975675 |
9 | 43025762 |
10 | 113414717 |
11 | 277904900 |
12 | 639562508 |
13 | 1393844960 |
14 | 2896063220 |
15 | 5768600412 |
16 | 11066514565 |
17 | 20526933442 |
18 | 36936277875 |
19 | 64660182026 |
20 | 110394412610 |
[1,50,887,8790,59542,307960,1301610,4701698, 14975675,43025762,113414717,277904900,639562508, 1393844960,2896063220,5768600412,11066514565, 20526933442,36936277875,64660182026,110394412610] |