n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 6 |
4 | 13 |
5 | 29 |
6 | 67 |
7 | 156 |
8 | 372 |
9 | 900 |
10 | 2202 |
11 | 5443 |
12 | 13562 |
13 | 34031 |
14 | 85900 |
15 | 217934 |
16 | 555381 |
17 | 1420879 |
18 | 3647776 |
19 | 9393805 |
20 | 24258259 |
21 | 62800749 |
22 | 162950583 |
23 | 423687106 |
24 | 1103713422 |
25 | 2880195973 |
26 | 7528061901 |
27 | 19705490392 |
28 | 51652038010 |
29 | 135563251625 |
[2,3,6,13,29,67,156,372,900,2202,5443,13562,34031, 85900,217934,555381,1420879,3647776,9393805, 24258259,62800749,162950583,423687106,1103713422, 2880195973,7528061901,19705490392,51652038010, 135563251625] |