n | a(n) |
---|---|
3 | 1 |
4 | 2 |
5 | 3 |
6 | 11 |
7 | 29 |
8 | 122 |
9 | 479 |
10 | 2113 |
11 | 9369 |
12 | 43392 |
13 | 203595 |
14 | 975563 |
15 | 4736005 |
16 | 23296394 |
17 | 115811855 |
18 | 581324861 |
19 | 2942579633 |
20 | 15008044522 |
21 | 77064865555 |
22 | 398150807179 |
23 | 2068470765261 |
24 | 10800665952376 |
25 | 56658467018647 |
26 | 298489772155137 |
27 | 1578702640556193 |
[1,2,3,11,29,122,479,2113,9369,43392,203595, 975563,4736005,23296394,115811855,581324861, 2942579633,15008044522,77064865555,398150807179, 2068470765261,10800665952376,56658467018647, 298489772155137,1578702640556193] |