n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 23 |
4 | 61 |
5 | 185 |
6 | 562 |
7 | 1677 |
8 | 4998 |
9 | 14968 |
10 | 44818 |
11 | 134061 |
12 | 401123 |
13 | 1200360 |
14 | 3591843 |
15 | 10747770 |
16 | 32160619 |
17 | 96234620 |
18 | 287963368 |
19 | 861674203 |
20 | 2578393448 |
21 | 7715343389 |
22 | 23086669802 |
23 | 69082386936 |
24 | 206715662599 |
25 | 618556579000 |
26 | 1850910743566 |
[1,8,23,61,185,562,1677,4998,14968,44818,134061, 401123,1200360,3591843,10747770,32160619,96234620, 287963368,861674203,2578393448,7715343389, 23086669802,69082386936,206715662599,618556579000, 1850910743566] |