n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 28 |
4 | 91 |
5 | 308 |
6 | 1078 |
7 | 3871 |
8 | 14161 |
9 | 52479 |
10 | 196196 |
11 | 737793 |
12 | 2785160 |
13 | 10540390 |
14 | 39955041 |
15 | 151615947 |
16 | 575723785 |
17 | 2187128524 |
18 | 8311078307 |
19 | 31587815308 |
20 | 120069510526 |
21 | 456434707519 |
22 | 1735184512425 |
23 | 6596692255391 |
24 | 25079305566420 |
[1,3,9,28,91,308,1078,3871,14161,52479,196196, 737793,2785160,10540390,39955041,151615947, 575723785,2187128524,8311078307,31587815308, 120069510526,456434707519,1735184512425, 6596692255391,25079305566420] |