n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 52 |
4 | 169 |
5 | 1993 |
6 | 6436 |
7 | 75700 |
8 | 244417 |
9 | 2874625 |
10 | 9281428 |
11 | 109160068 |
12 | 352449865 |
13 | 4145207977 |
14 | 13383813460 |
15 | 157408743076 |
16 | 508232461633 |
17 | 5977387028929 |
18 | 19299449728612 |
19 | 226983298356244 |
20 | 732870857225641 |
21 | 8619387950508361 |
22 | 27829793124845764 |
[1,4,52,169,1993,6436,75700,244417,2874625, 9281428,109160068,352449865,4145207977, 13383813460,157408743076,508232461633, 5977387028929,19299449728612,226983298356244, 732870857225641,8619387950508361, 27829793124845764] |