n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 40 |
6 | 127 |
7 | 443 |
8 | 1610 |
9 | 6207 |
10 | 24919 |
11 | 104440 |
12 | 453913 |
13 | 2042537 |
14 | 9488242 |
15 | 45403797 |
16 | 223433077 |
17 | 1128619968 |
18 | 5844484375 |
19 | 30981783123 |
20 | 167949231882 |
21 | 929951967519 |
22 | 5254958379951 |
23 | 30276315741008 |
24 | 177717403802001 |
25 | 1061989593129105 |
26 | 6456342053713346 |
[1,1,2,5,13,40,127,443,1610,6207,24919,104440, 453913,2042537,9488242,45403797,223433077, 1128619968,5844484375,30981783123,167949231882, 929951967519,5254958379951,30276315741008, 177717403802001,1061989593129105,6456342053713346] |