n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 24 |
7 | 54 |
8 | 120 |
9 | 258 |
10 | 552 |
11 | 1164 |
12 | 2432 |
13 | 5042 |
14 | 10384 |
15 | 21268 |
16 | 43344 |
17 | 87962 |
18 | 177840 |
19 | 358358 |
20 | 719964 |
21 | 1442584 |
22 | 2883504 |
23 | 5751020 |
24 | 11447164 |
25 | 22743262 |
26 | 45110096 |
27 | 89334192 |
28 | 176658732 |
29 | 348875904 |
30 | 688122336 |
31 | 1355674528 |
32 | 2667921660 |
33 | 5245033102 |
[0,0,0,2,4,10,24,54,120,258,552,1164,2432,5042, 10384,21268,43344,87962,177840,358358,719964, 1442584,2883504,5751020,11447164,22743262, 45110096,89334192,176658732,348875904,688122336, 1355674528,2667921660,5245033102] |