n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 9 |
5 | 28 |
6 | 95 |
7 | 306 |
8 | 285 |
9 | 1071 |
10 | 3948 |
11 | 14148 |
12 | 11844 |
13 | 47160 |
14 | 182655 |
15 | 690580 |
16 | 547965 |
17 | 2244385 |
18 | 8961953 |
19 | 35016345 |
20 | 26885859 |
21 | 112052304 |
22 | 456606332 |
23 | 1824478488 |
24 | 1369818996 |
25 | 5777515212 |
26 | 23884958520 |
27 | 97002706248 |
28 | 71654875560 |
29 | 304865648208 |
30 | 1273989485439 |
[1,1,3,7,9,28,95,306,285,1071,3948,14148,11844, 47160,182655,690580,547965,2244385,8961953, 35016345,26885859,112052304,456606332,1824478488, 1369818996,5777515212,23884958520,97002706248, 71654875560,304865648208,1273989485439] |