n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 25 |
3 | 214 |
4 | 2293 |
5 | 29176 |
6 | 427189 |
7 | 7049890 |
8 | 129178249 |
9 | 2597880268 |
10 | 56815155121 |
11 | 1341068392654 |
12 | 33951269718205 |
13 | 917020113259264 |
14 | 26305693331946253 |
15 | 798293630021120986 |
16 | 25540244079135784849 |
17 | 858854698277997113620 |
18 | 30274382852181639467209 |
[1,4,25,214,2293,29176,427189,7049890,129178249, 2597880268,56815155121,1341068392654, 33951269718205,917020113259264,26305693331946253, 798293630021120986,25540244079135784849, 858854698277997113620,30274382852181639467209] |