n | a(n) |
---|---|
3 | 1 |
4 | 37 |
5 | 376 |
6 | 2267 |
7 | 10220 |
8 | 38403 |
9 | 127921 |
10 | 392688 |
11 | 1140260 |
12 | 3189022 |
13 | 8699540 |
14 | 23352118 |
15 | 62048869 |
16 | 163843187 |
17 | 431026972 |
18 | 1131463777 |
19 | 2966502032 |
20 | 7772382641 |
21 | 20356549685 |
22 | 53305176134 |
23 | 139569431544 |
24 | 365416760764 |
25 | 956698453752 |
26 | 2504701077772 |
27 | 6557433205689 |
28 | 17167634170241 |
[1,37,376,2267,10220,38403,127921,392688,1140260, 3189022,8699540,23352118,62048869,163843187, 431026972,1131463777,2966502032,7772382641, 20356549685,53305176134,139569431544,365416760764, 956698453752,2504701077772,6557433205689, 17167634170241] |