n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 12 |
4 | 128 |
5 | 605 |
6 | 3072 |
7 | 16807 |
8 | 82944 |
9 | 412164 |
10 | 2035220 |
11 | 9864899 |
12 | 47579136 |
13 | 227902597 |
14 | 1084320412 |
15 | 5134860060 |
16 | 24207040512 |
17 | 113664879137 |
18 | 531895993344 |
19 | 2481300851179 |
20 | 11543181696640 |
21 | 53565699079956 |
22 | 248005494380204 |
23 | 1145875775104967 |
24 | 5284358088818688 |
[1,4,12,128,605,3072,16807,82944,412164,2035220, 9864899,47579136,227902597,1084320412,5134860060, 24207040512,113664879137,531895993344, 2481300851179,11543181696640,53565699079956, 248005494380204,1145875775104967,5284358088818688] |