n | a(n) |
---|---|
1 | 1880 |
2 | 4724 |
3 | 12176 |
4 | 35868 |
5 | 105208 |
6 | 333340 |
7 | 1043256 |
8 | 3446068 |
9 | 11230320 |
10 | 38241780 |
11 | 128423464 |
12 | 448265876 |
13 | 1541798936 |
14 | 5493045164 |
15 | 19259557328 |
16 | 69772185756 |
17 | 248380454616 |
18 | 911885089884 |
19 | 3284787994840 |
20 | 12186209514644 |
21 | 44296484322480 |
[1880,4724,12176,35868,105208,333340,1043256, 3446068,11230320,38241780,128423464,448265876, 1541798936,5493045164,19259557328,69772185756, 248380454616,911885089884,3284787994840, 12186209514644,44296484322480] |