n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 37 |
4 | 153 |
5 | 951 |
6 | 5473 |
7 | 42729 |
8 | 353937 |
9 | 3455083 |
10 | 30071001 |
11 | 426685293 |
12 | 4707929449 |
13 | 59350096287 |
14 | 882391484913 |
15 | 15177204356401 |
16 | 205119866263713 |
17 | 4040196156574419 |
18 | 64262949875511337 |
19 | 1408785031894483893 |
20 | 29514546353782633401 |
21 | 593055713389216814983 |
[1,3,9,37,153,951,5473,42729,353937,3455083, 30071001,426685293,4707929449,59350096287, 882391484913,15177204356401,205119866263713, 4040196156574419,64262949875511337, 1408785031894483893,29514546353782633401, 593055713389216814983] |