n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 15 |
4 | 34 |
5 | 86 |
6 | 216 |
7 | 548 |
8 | 1411 |
9 | 3677 |
10 | 9620 |
11 | 25295 |
12 | 66735 |
13 | 176535 |
14 | 467996 |
15 | 1242482 |
16 | 3302288 |
17 | 8784052 |
18 | 23380492 |
19 | 62260290 |
20 | 165852146 |
21 | 441922281 |
22 | 1177759338 |
23 | 3139292092 |
24 | 8368647137 |
25 | 22310795823 |
26 | 59484268376 |
[3,6,15,34,86,216,548,1411,3677,9620,25295,66735, 176535,467996,1242482,3302288,8784052,23380492, 62260290,165852146,441922281,1177759338, 3139292092,8368647137,22310795823,59484268376] |