n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 37 |
3 | 157 |
4 | 665 |
5 | 2817 |
6 | 11933 |
7 | 50549 |
8 | 214129 |
9 | 907065 |
10 | 3842389 |
11 | 16276621 |
12 | 68948873 |
13 | 292072113 |
14 | 1237237325 |
15 | 5241021413 |
16 | 22201322977 |
17 | 94046313321 |
18 | 398386576261 |
19 | 1687592618365 |
20 | 7148757049721 |
21 | 30282620817249 |
22 | 128279240318717 |
23 | 543399582092117 |
24 | 2301877568687185 |
[1,9,37,157,665,2817,11933,50549,214129,907065, 3842389,16276621,68948873,292072113,1237237325, 5241021413,22201322977,94046313321,398386576261, 1687592618365,7148757049721,30282620817249, 128279240318717,543399582092117,2301877568687185] |