n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 32 |
6 | 92 |
7 | 278 |
8 | 877 |
9 | 2861 |
10 | 9572 |
11 | 32656 |
12 | 113164 |
13 | 397190 |
14 | 1409006 |
15 | 5043617 |
16 | 18194197 |
17 | 66075777 |
18 | 241385044 |
19 | 886422017 |
20 | 3270283189 |
21 | 12115355601 |
22 | 45052126049 |
23 | 168100964161 |
24 | 629171367473 |
25 | 2361546968519 |
26 | 8886942571534 |
27 | 33523357596518 |
28 | 126736969302857 |
[1,2,5,12,32,92,278,877,2861,9572,32656,113164, 397190,1409006,5043617,18194197,66075777, 241385044,886422017,3270283189,12115355601, 45052126049,168100964161,629171367473, 2361546968519,8886942571534,33523357596518, 126736969302857] |