n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 7 |
7 | 12 |
8 | 28 |
9 | 51 |
10 | 117 |
11 | 221 |
12 | 498 |
13 | 964 |
14 | 2138 |
15 | 4212 |
16 | 9219 |
17 | 18401 |
18 | 39850 |
19 | 80333 |
20 | 172520 |
21 | 350437 |
22 | 747658 |
23 | 1527648 |
24 | 3242589 |
25 | 6655572 |
26 | 14070946 |
27 | 28983184 |
28 | 61085625 |
29 | 126167668 |
30 | 265275043 |
31 | 549067801 |
32 | 1152293771 |
33 | 2388951139 |
34 | 5006276579 |
35 | 10392343314 |
36 | 21753656201 |
37 | 45202392073 |
38 | 94536770344 |
39 | 196591219072 |
[0,0,1,1,2,3,7,12,28,51,117,221,498,964,2138,4212, 9219,18401,39850,80333,172520,350437,747658, 1527648,3242589,6655572,14070946,28983184, 61085625,126167668,265275043,549067801,1152293771, 2388951139,5006276579,10392343314,21753656201, 45202392073,94536770344,196591219072] |