n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 25 |
3 | 169 |
4 | 1156 |
5 | 7921 |
6 | 54289 |
7 | 372100 |
8 | 2550409 |
9 | 17480761 |
10 | 119814916 |
11 | 821223649 |
12 | 5628750625 |
13 | 38580030724 |
14 | 264431464441 |
15 | 1812440220361 |
16 | 12422650078084 |
17 | 85146110326225 |
18 | 583600122205489 |
19 | 4000054745112196 |
20 | 27416783093579881 |
[1,4,25,169,1156,7921,54289,372100,2550409, 17480761,119814916,821223649,5628750625, 38580030724,264431464441,1812440220361, 12422650078084,85146110326225,583600122205489, 4000054745112196,27416783093579881] |