n | a(n) |
---|---|
3 | 1 |
4 | 29 |
5 | 247 |
6 | 1300 |
7 | 5270 |
8 | 18228 |
9 | 56967 |
10 | 166681 |
11 | 467301 |
12 | 1274856 |
13 | 3419252 |
14 | 9076280 |
15 | 23945893 |
16 | 62955061 |
17 | 165188091 |
18 | 432974764 |
19 | 1134224458 |
20 | 2970340412 |
21 | 7777628427 |
22 | 20363608737 |
23 | 53314542953 |
24 | 139581703056 |
25 | 365432651464 |
26 | 956718812272 |
27 | 2504726904937 |
28 | 6557465674125 |
[1,29,247,1300,5270,18228,56967,166681,467301, 1274856,3419252,9076280,23945893,62955061, 165188091,432974764,1134224458,2970340412, 7777628427,20363608737,53314542953,139581703056, 365432651464,956718812272,2504726904937, 6557465674125] |