n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 9 |
4 | 26 |
5 | 57 |
6 | 133 |
7 | 306 |
8 | 709 |
9 | 1642 |
10 | 3805 |
11 | 8811 |
12 | 20409 |
13 | 47276 |
14 | 109514 |
15 | 253686 |
16 | 587661 |
17 | 1361316 |
18 | 3153496 |
19 | 7305099 |
20 | 16922333 |
21 | 39200767 |
22 | 90809027 |
23 | 210360189 |
24 | 487301922 |
25 | 1128840861 |
26 | 2614973750 |
27 | 6057619008 |
28 | 14032549467 |
29 | 32506574899 |
30 | 75301884294 |
[1,6,9,26,57,133,306,709,1642,3805,8811,20409, 47276,109514,253686,587661,1361316,3153496, 7305099,16922333,39200767,90809027,210360189, 487301922,1128840861,2614973750,6057619008, 14032549467,32506574899,75301884294] |