n | a(n) |
---|---|
1 | 4 |
2 | 25 |
3 | 168 |
4 | 1228 |
5 | 9592 |
6 | 78529 |
7 | 664614 |
8 | 5761262 |
9 | 50847534 |
10 | 455065829 |
11 | 4118207819 |
12 | 37608740621 |
13 | 346064579205 |
14 | 3204855540243 |
15 | 29843276960952 |
16 | 279224843911465 |
17 | 2623449162422369 |
18 | 24739367527714285 |
19 | 234057667278287556 |
20 | 2220873676061063755 |
[4,25,168,1228,9592,78529,664614,5761262,50847534, 455065829,4118207819,37608740621,346064579205, 3204855540243,29843276960952,279224843911465, 2623449162422369,24739367527714285, 234057667278287556,2220873676061063755] |