n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 3 |
5 | 13 |
6 | 28 |
7 | 65 |
8 | 199 |
9 | 540 |
10 | 1468 |
11 | 4188 |
12 | 12328 |
13 | 36870 |
14 | 110181 |
15 | 331226 |
16 | 1012241 |
17 | 3137822 |
18 | 9796834 |
19 | 30695164 |
20 | 96658857 |
21 | 306575170 |
22 | 979485119 |
23 | 3148413910 |
24 | 10169223709 |
25 | 32983822120 |
26 | 107413795300 |
27 | 351235602807 |
28 | 1153308804255 |
29 | 3802294411213 |
30 | 12581993628872 |
[1,1,1,3,3,13,28,65,199,540,1468,4188,12328,36870, 110181,331226,1012241,3137822,9796834,30695164, 96658857,306575170,979485119,3148413910, 10169223709,32983822120,107413795300,351235602807, 1153308804255,3802294411213,12581993628872] |