n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 15 |
3 | 226 |
4 | 3405 |
5 | 51301 |
6 | 772920 |
7 | 11645101 |
8 | 175449435 |
9 | 2643386626 |
10 | 39826248825 |
11 | 600037119001 |
12 | 9040383033840 |
13 | 136205782626601 |
14 | 2052127122432855 |
15 | 30918112619119426 |
16 | 465823816409224245 |
17 | 7018275358757483101 |
18 | 105739954197771470760 |
19 | 1593117588325329544501 |
[0,1,15,226,3405,51301,772920,11645101,175449435, 2643386626,39826248825,600037119001,9040383033840, 136205782626601,2052127122432855, 30918112619119426,465823816409224245, 7018275358757483101,105739954197771470760, 1593117588325329544501] |