n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 26 |
5 | 88 |
6 | 311 |
7 | 1153 |
8 | 4333 |
9 | 16829 |
10 | 66002 |
11 | 264115 |
12 | 1066884 |
13 | 4363921 |
14 | 18002965 |
15 | 74905311 |
16 | 313910581 |
17 | 1323968067 |
18 | 5616942579 |
19 | 23952413637 |
20 | 102631047883 |
21 | 441627135110 |
22 | 1907887954979 |
23 | 8271997010078 |
24 | 35984511382945 |
25 | 157019757068451 |
26 | 687117606836508 |
27 | 3014802801069618 |
28 | 13260483082517811 |
[1,1,3,8,26,88,311,1153,4333,16829,66002,264115, 1066884,4363921,18002965,74905311,313910581, 1323968067,5616942579,23952413637,102631047883, 441627135110,1907887954979,8271997010078, 35984511382945,157019757068451,687117606836508, 3014802801069618,13260483082517811] |