n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 10 |
6 | 27 |
7 | 67 |
8 | 154 |
9 | 350 |
10 | 763 |
11 | 1638 |
12 | 3450 |
13 | 7191 |
14 | 14831 |
15 | 30398 |
16 | 61891 |
17 | 125557 |
18 | 253841 |
19 | 511818 |
20 | 1029863 |
21 | 2069341 |
22 | 4153060 |
23 | 8327646 |
24 | 16687483 |
25 | 33422562 |
26 | 66916342 |
27 | 133936603 |
28 | 268026776 |
29 | 536277032 |
30 | 1072886163 |
31 | 2146245056 |
32 | 4293187682 |
33 | 8587371116 |
[0,0,0,1,3,10,27,67,154,350,763,1638,3450,7191, 14831,30398,61891,125557,253841,511818,1029863, 2069341,4153060,8327646,16687483,33422562, 66916342,133936603,268026776,536277032,1072886163, 2146245056,4293187682,8587371116] |