n | a(n) |
---|---|
0 | 1 |
1 | 16 |
2 | 272 |
3 | 4880 |
4 | 91920 |
5 | 1810192 |
6 | 37142288 |
7 | 791744272 |
8 | 17490370320 |
9 | 399558315792 |
10 | 9421351690000 |
11 | 228916588400400 |
12 | 5723078052339472 |
13 | 147025755978698512 |
14 | 3876566243300318992 |
15 | 104789417805394595600 |
16 | 2901159958960121863952 |
17 | 82188946843192555474704 |
18 | 2380551266738846355103504 |
19 | 70441182699006212824911632 |
[1,16,272,4880,91920,1810192,37142288,791744272, 17490370320,399558315792,9421351690000, 228916588400400,5723078052339472, 147025755978698512,3876566243300318992, 104789417805394595600,2901159958960121863952, 82188946843192555474704,2380551266738846355103504, 70441182699006212824911632] |