n | a(n) |
---|---|
1 | 15 |
2 | 211 |
3 | 1948 |
4 | 12686 |
5 | 64920 |
6 | 277585 |
7 | 1030330 |
8 | 3407823 |
9 | 10237249 |
10 | 28340232 |
11 | 73128376 |
12 | 177500233 |
13 | 408299906 |
14 | 895580310 |
15 | 1882850350 |
16 | 3810729118 |
17 | 7452433875 |
18 | 14127861337 |
19 | 26034391284 |
20 | 46747817584 |
21 | 81967052716 |
22 | 140602733711 |
[15,211,1948,12686,64920,277585,1030330,3407823, 10237249,28340232,73128376,177500233,408299906, 895580310,1882850350,3810729118,7452433875, 14127861337,26034391284,46747817584,81967052716, 140602733711] |