n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 27 |
4 | 112 |
5 | 453 |
6 | 1818 |
7 | 7279 |
8 | 29124 |
9 | 116505 |
10 | 466030 |
11 | 1864131 |
12 | 7456536 |
13 | 29826157 |
14 | 119304642 |
15 | 477218583 |
16 | 1908874348 |
17 | 7635497409 |
18 | 30541989654 |
19 | 122167958635 |
20 | 488671834560 |
21 | 1954687338261 |
22 | 7818749353066 |
[1,6,27,112,453,1818,7279,29124,116505,466030, 1864131,7456536,29826157,119304642,477218583, 1908874348,7635497409,30541989654,122167958635, 488671834560,1954687338261,7818749353066] |