n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 9 |
4 | 17 |
5 | 31 |
6 | 109 |
7 | 251 |
8 | 553 |
9 | 1527 |
10 | 3721 |
11 | 8799 |
12 | 22521 |
13 | 55607 |
14 | 135161 |
15 | 337655 |
16 | 835305 |
17 | 2051719 |
18 | 5086601 |
19 | 12580007 |
20 | 31019689 |
21 | 76724327 |
22 | 189674697 |
23 | 468351815 |
24 | 1157626473 |
25 | 2861142183 |
26 | 7068302665 |
27 | 17467362631 |
28 | 43166610985 |
29 | 106658791143 |
30 | 263564545289 |
31 | 651307249159 |
[1,1,1,9,17,31,109,251,553,1527,3721,8799,22521, 55607,135161,337655,835305,2051719,5086601, 12580007,31019689,76724327,189674697,468351815, 1157626473,2861142183,7068302665,17467362631, 43166610985,106658791143,263564545289, 651307249159] |