n | a(n) |
---|---|
0 | 1 |
1 | 13 |
2 | 85 |
3 | 517 |
4 | 3109 |
5 | 18661 |
6 | 111973 |
7 | 671845 |
8 | 4031077 |
9 | 24186469 |
10 | 145118821 |
11 | 870712933 |
12 | 5224277605 |
13 | 31345665637 |
14 | 188073993829 |
15 | 1128443962981 |
16 | 6770663777893 |
17 | 40623982667365 |
18 | 243743896004197 |
19 | 1462463376025189 |
20 | 8774780256151141 |
21 | 52648681536906853 |
[1,13,85,517,3109,18661,111973,671845,4031077, 24186469,145118821,870712933,5224277605, 31345665637,188073993829,1128443962981, 6770663777893,40623982667365,243743896004197, 1462463376025189,8774780256151141, 52648681536906853] |