n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 6 |
4 | 15 |
5 | 27 |
6 | 58 |
7 | 112 |
8 | 229 |
9 | 453 |
10 | 912 |
11 | 1818 |
12 | 3643 |
13 | 7279 |
14 | 14566 |
15 | 29124 |
16 | 58257 |
17 | 116505 |
18 | 233020 |
19 | 466030 |
20 | 932071 |
21 | 1864131 |
22 | 3728274 |
23 | 7456536 |
24 | 14913085 |
25 | 29826157 |
26 | 59652328 |
27 | 119304642 |
28 | 238609299 |
[1,1,4,6,15,27,58,112,229,453,912,1818,3643,7279, 14566,29124,58257,116505,233020,466030,932071, 1864131,3728274,7456536,14913085,29826157, 59652328,119304642,238609299] |