n | a(n) |
---|---|
5 | 1 |
6 | 6 |
7 | 31 |
8 | 133 |
9 | 586 |
10 | 2453 |
11 | 10357 |
12 | 43462 |
13 | 183519 |
14 | 776632 |
15 | 3314263 |
16 | 14236474 |
17 | 61673638 |
18 | 269354538 |
19 | 1186290977 |
20 | 5269574378 |
21 | 23605973532 |
22 | 106655907009 |
23 | 485864276503 |
24 | 2231922870273 |
25 | 10334732098172 |
26 | 48242171467087 |
27 | 226930634774929 |
28 | 1075778352040282 |
29 | 5137573709818840 |
[1,6,31,133,586,2453,10357,43462,183519,776632, 3314263,14236474,61673638,269354538,1186290977, 5269574378,23605973532,106655907009,485864276503, 2231922870273,10334732098172,48242171467087, 226930634774929,1075778352040282,5137573709818840] |