n | a(n) |
---|---|
0 | 2 |
1 | 5 |
2 | 23 |
3 | 110 |
4 | 527 |
5 | 2525 |
6 | 12098 |
7 | 57965 |
8 | 277727 |
9 | 1330670 |
10 | 6375623 |
11 | 30547445 |
12 | 146361602 |
13 | 701260565 |
14 | 3359941223 |
15 | 16098445550 |
16 | 77132286527 |
17 | 369562987085 |
18 | 1770682648898 |
19 | 8483850257405 |
20 | 40648568638127 |
21 | 194758992933230 |
22 | 933146396028023 |
23 | 4470972987206885 |
[2,5,23,110,527,2525,12098,57965,277727,1330670, 6375623,30547445,146361602,701260565,3359941223, 16098445550,77132286527,369562987085, 1770682648898,8483850257405,40648568638127, 194758992933230,933146396028023,4470972987206885] |