n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 31 |
3 | 115 |
4 | 391 |
5 | 1267 |
6 | 3979 |
7 | 12271 |
8 | 37423 |
9 | 113371 |
10 | 342091 |
11 | 1029799 |
12 | 3095671 |
13 | 9298147 |
14 | 27914179 |
15 | 83777503 |
16 | 251394415 |
17 | 754292827 |
18 | 2263072411 |
19 | 6789560407 |
20 | 20369288455 |
21 | 61108939795 |
22 | 183328720435 |
23 | 549989524879 |
24 | 1649974525855 |
25 | 4949934107083 |
26 | 14849820951115 |
[1,7,31,115,391,1267,3979,12271,37423,113371, 342091,1029799,3095671,9298147,27914179,83777503, 251394415,754292827,2263072411,6789560407, 20369288455,61108939795,183328720435,549989524879, 1649974525855,4949934107083,14849820951115] |