n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 6 |
6 | 26 |
7 | 94 |
8 | 306 |
9 | 934 |
10 | 2732 |
11 | 7752 |
12 | 21488 |
13 | 58432 |
14 | 156288 |
15 | 411904 |
16 | 1071104 |
17 | 2750976 |
18 | 6984704 |
19 | 17545216 |
20 | 43634688 |
21 | 107511808 |
22 | 262602752 |
23 | 636223488 |
24 | 1529741312 |
25 | 3652059136 |
26 | 8660975616 |
27 | 20412104704 |
28 | 47826599936 |
29 | 111446851584 |
30 | 258360737792 |
31 | 596044152832 |
[0,0,0,0,1,6,26,94,306,934,2732,7752,21488,58432, 156288,411904,1071104,2750976,6984704,17545216, 43634688,107511808,262602752,636223488,1529741312, 3652059136,8660975616,20412104704,47826599936, 111446851584,258360737792,596044152832] |