n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 16 |
4 | 51 |
5 | 174 |
6 | 617 |
7 | 2223 |
8 | 8051 |
9 | 29220 |
10 | 106109 |
11 | 385468 |
12 | 1400401 |
13 | 5088037 |
14 | 18486201 |
15 | 67166528 |
16 | 244037407 |
17 | 886670130 |
18 | 3221565113 |
19 | 11705027203 |
20 | 42528259303 |
21 | 154519400012 |
22 | 561420537017 |
23 | 2039828499536 |
24 | 7411378111905 |
[2,5,16,51,174,617,2223,8051,29220,106109,385468, 1400401,5088037,18486201,67166528,244037407, 886670130,3221565113,11705027203,42528259303, 154519400012,561420537017,2039828499536, 7411378111905] |