n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 9 |
4 | 34 |
5 | 94 |
6 | 368 |
7 | 1131 |
8 | 4398 |
9 | 14236 |
10 | 55984 |
11 | 188576 |
12 | 740000 |
13 | 2551442 |
14 | 10067316 |
15 | 35443271 |
16 | 139712062 |
17 | 498416468 |
18 | 1971107420 |
19 | 7122847862 |
20 | 28153558524 |
21 | 102603939062 |
22 | 406431688608 |
23 | 1494188962016 |
24 | 5916706122284 |
25 | 21880889654074 |
26 | 86779037261076 |
27 | 322951842854822 |
28 | 1280521402780940 |
29 | 4786287052515392 |
[1,1,4,9,34,94,368,1131,4398,14236,55984,188576, 740000,2551442,10067316,35443271,139712062, 498416468,1971107420,7122847862,28153558524, 102603939062,406431688608,1494188962016, 5916706122284,21880889654074,86779037261076, 322951842854822,1280521402780940,4786287052515392] |