n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 16 |
6 | 41 |
7 | 112 |
8 | 318 |
9 | 922 |
10 | 2763 |
11 | 8394 |
12 | 25957 |
13 | 81172 |
14 | 256820 |
15 | 819114 |
16 | 2633626 |
17 | 8525056 |
18 | 27755962 |
19 | 90841159 |
20 | 298680608 |
21 | 986156342 |
22 | 3268174479 |
23 | 10867702340 |
24 | 36250205100 |
25 | 121257882210 |
26 | 406663900459 |
27 | 1367092812987 |
[2,2,3,7,16,41,112,318,922,2763,8394,25957,81172, 256820,819114,2633626,8525056,27755962,90841159, 298680608,986156342,3268174479,10867702340, 36250205100,121257882210,406663900459, 1367092812987] |