n | a(n) |
---|---|
4 | 1 |
5 | 0 |
6 | 0 |
7 | 3 |
8 | 7 |
9 | 8 |
10 | 21 |
11 | 55 |
12 | 121 |
13 | 265 |
14 | 611 |
15 | 1379 |
16 | 3193 |
17 | 7436 |
18 | 17085 |
19 | 39339 |
20 | 91846 |
21 | 214549 |
22 | 500132 |
23 | 1169267 |
24 | 2743302 |
25 | 6445797 |
26 | 15167805 |
27 | 35749961 |
28 | 84390645 |
29 | 199523566 |
30 | 472429633 |
31 | 1120012481 |
32 | 2658525869 |
33 | 6318368820 |
34 | 15034189965 |
35 | 35811690663 |
36 | 85393261630 |
[1,0,0,3,7,8,21,55,121,265,611,1379,3193,7436, 17085,39339,91846,214549,500132,1169267,2743302, 6445797,15167805,35749961,84390645,199523566, 472429633,1120012481,2658525869,6318368820, 15034189965,35811690663,85393261630] |