n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 37 |
5 | 140 |
6 | 544 |
7 | 2181 |
8 | 8873 |
9 | 36647 |
10 | 152950 |
11 | 644313 |
12 | 2734648 |
13 | 11681428 |
14 | 50173541 |
15 | 216532005 |
16 | 938383331 |
17 | 4081653710 |
18 | 17811999929 |
19 | 77957939080 |
20 | 342099306436 |
21 | 1504801777973 |
22 | 6633574235109 |
23 | 29300516237855 |
[1,1,3,10,37,140,544,2181,8873,36647,152950, 644313,2734648,11681428,50173541,216532005, 938383331,4081653710,17811999929,77957939080, 342099306436,1504801777973,6633574235109, 29300516237855] |