n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 41 |
6 | 132 |
7 | 442 |
8 | 1524 |
9 | 5470 |
10 | 20059 |
11 | 74978 |
12 | 286336 |
13 | 1108833 |
14 | 4349771 |
15 | 17293196 |
16 | 69428179 |
17 | 281307331 |
18 | 1150317126 |
19 | 4738033915 |
20 | 19649014226 |
21 | 82036268908 |
22 | 344417930644 |
23 | 1453617282097 |
24 | 6166684567631 |
25 | 26276294251448 |
26 | 112432261367960 |
27 | 483045501643010 |
28 | 2082734215839570 |
[1,1,2,5,14,41,132,442,1524,5470,20059,74978, 286336,1108833,4349771,17293196,69428179, 281307331,1150317126,4738033915,19649014226, 82036268908,344417930644,1453617282097, 6166684567631,26276294251448,112432261367960, 483045501643010,2082734215839570] |