n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 15 |
4 | 39 |
5 | 127 |
6 | 480 |
7 | 2143 |
8 | 10907 |
9 | 62495 |
10 | 397814 |
11 | 2785861 |
12 | 21282228 |
13 | 176133285 |
14 | 1569817724 |
15 | 14990658724 |
16 | 152693582275 |
17 | 1652531857935 |
18 | 18936620009722 |
19 | 229053108410969 |
20 | 2916394751599614 |
21 | 38989325834726043 |
22 | 546070266163669664 |
23 | 7995699956778626764 |
[1,3,7,15,39,127,480,2143,10907,62495,397814, 2785861,21282228,176133285,1569817724,14990658724, 152693582275,1652531857935,18936620009722, 229053108410969,2916394751599614, 38989325834726043,546070266163669664, 7995699956778626764] |