n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 21 |
3 | 220 |
4 | 5985 |
5 | 501942 |
6 | 143218999 |
7 | 145944307080 |
8 | 542150225230185 |
9 | 7398714129087308170 |
10 | 372134605932348010322571 |
11 | 69146263065062394421802892300 |
12 | 47589861944854471977019273909187085 |
[1,4,21,220,5985,501942,143218999,145944307080, 542150225230185,7398714129087308170, 372134605932348010322571, 69146263065062394421802892300, 47589861944854471977019273909187085] |