n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 14 |
3 | 41 |
4 | 223 |
5 | 979 |
6 | 3878 |
7 | 20483 |
8 | 70897 |
9 | 408073 |
10 | 1329734 |
11 | 7964417 |
12 | 25250959 |
13 | 154039339 |
14 | 482301806 |
15 | 2967115019 |
16 | 9237038497 |
17 | 57046572241 |
18 | 177128072702 |
19 | 1095861584537 |
20 | 3398526529663 |
21 | 21043253658307 |
22 | 65224098543926 |
23 | 404010494645843 |
24 | 1251923775716881 |
[1,1,14,41,223,979,3878,20483,70897,408073, 1329734,7964417,25250959,154039339,482301806, 2967115019,9237038497,57046572241,177128072702, 1095861584537,3398526529663,21043253658307, 65224098543926,404010494645843,1251923775716881] |