n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 19 |
4 | 63 |
5 | 231 |
6 | 895 |
7 | 3615 |
8 | 15055 |
9 | 64111 |
10 | 277791 |
11 | 1220767 |
12 | 5427775 |
13 | 24371199 |
14 | 110350335 |
15 | 503289727 |
16 | 2309992959 |
17 | 10661634303 |
18 | 49452179455 |
19 | 230391918591 |
20 | 1077644520703 |
21 | 5058766156543 |
22 | 23824929459711 |
23 | 112541456498175 |
24 | 533063457631231 |
25 | 2531252417738751 |
[1,3,7,19,63,231,895,3615,15055,64111,277791, 1220767,5427775,24371199,110350335,503289727, 2309992959,10661634303,49452179455,230391918591, 1077644520703,5058766156543,23824929459711, 112541456498175,533063457631231,2531252417738751] |