n | a(n) |
---|---|
3 | 4 |
4 | 48 |
5 | 469 |
6 | 4222 |
7 | 36715 |
8 | 313912 |
9 | 2661888 |
10 | 22486072 |
11 | 189688752 |
12 | 1600198048 |
13 | 13510004742 |
14 | 114204762280 |
15 | 966871825132 |
16 | 8199071477920 |
17 | 69645535691958 |
18 | 592592023212504 |
19 | 5050571335425668 |
20 | 43114956743414712 |
21 | 368632989326212821 |
22 | 3156551837806702698 |
[4,48,469,4222,36715,313912,2661888,22486072, 189688752,1600198048,13510004742,114204762280, 966871825132,8199071477920,69645535691958, 592592023212504,5050571335425668, 43114956743414712,368632989326212821, 3156551837806702698] |