n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 8 |
4 | 21 |
5 | 55 |
6 | 149 |
7 | 404 |
8 | 1097 |
9 | 2981 |
10 | 162755 |
11 | 1202605 |
12 | 3269018 |
13 | 8886111 |
14 | 24154953 |
15 | 178482301 |
16 | 9744803447 |
17 | 26489122130 |
18 | 195729609429 |
19 | 532048240602 |
20 | 1446257064292 |
21 | 3931334297145 |
22 | 10686474581525 |
23 | 29048849665248 |
24 | 78962960182681 |
25 | 583461742527455 |
26 | 1586013452313431 |
[2,3,8,21,55,149,404,1097,2981,162755,1202605, 3269018,8886111,24154953,178482301,9744803447, 26489122130,195729609429,532048240602, 1446257064292,3931334297145,10686474581525, 29048849665248,78962960182681,583461742527455, 1586013452313431] |