n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 3 |
4 | 13 |
5 | 34 |
6 | 73 |
7 | 203 |
8 | 594 |
9 | 1443 |
10 | 4013 |
11 | 11114 |
12 | 29073 |
13 | 79243 |
14 | 216234 |
15 | 577883 |
16 | 1566413 |
17 | 4247794 |
18 | 11437273 |
19 | 30940683 |
20 | 83723074 |
21 | 225989523 |
22 | 610970413 |
23 | 1651964474 |
24 | 4462848673 |
25 | 12062978123 |
26 | 32607525914 |
27 | 88115865163 |
28 | 238159441613 |
[2,4,3,13,34,73,203,594,1443,4013,11114,29073, 79243,216234,577883,1566413,4247794,11437273, 30940683,83723074,225989523,610970413,1651964474, 4462848673,12062978123,32607525914,88115865163, 238159441613] |