n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 31 |
3 | 148 |
4 | 667 |
5 | 2754 |
6 | 10823 |
7 | 40393 |
8 | 145085 |
9 | 502780 |
10 | 1690603 |
11 | 5530649 |
12 | 17658430 |
13 | 55141520 |
14 | 168751779 |
15 | 506933980 |
16 | 1496999360 |
17 | 4350994324 |
18 | 12460305177 |
19 | 35192973824 |
20 | 98116587875 |
21 | 270220568883 |
22 | 735668636567 |
23 | 1981082952258 |
24 | 5279879097853 |
25 | 13933764841202 |
[1,5,31,148,667,2754,10823,40393,145085,502780, 1690603,5530649,17658430,55141520,168751779, 506933980,1496999360,4350994324,12460305177, 35192973824,98116587875,270220568883,735668636567, 1981082952258,5279879097853,13933764841202] |