n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 27 |
4 | 254 |
5 | 3048 |
6 | 44328 |
7 | 755681 |
8 | 14750646 |
9 | 323999500 |
10 | 7901623624 |
11 | 211690439030 |
12 | 6176393964684 |
13 | 194847458672328 |
14 | 6606138879434128 |
15 | 239466033046020357 |
16 | 9239284257332493478 |
17 | 377948418993992417644 |
18 | 16335430070738649950536 |
19 | 743711790322786003051882 |
[1,1,4,27,254,3048,44328,755681,14750646, 323999500,7901623624,211690439030,6176393964684, 194847458672328,6606138879434128, 239466033046020357,9239284257332493478, 377948418993992417644,16335430070738649950536, 743711790322786003051882] |