n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 8 |
5 | 17 |
6 | 36 |
7 | 80 |
8 | 180 |
9 | 410 |
10 | 946 |
11 | 2203 |
12 | 5173 |
13 | 12233 |
14 | 29108 |
15 | 69643 |
16 | 167437 |
17 | 404311 |
18 | 980125 |
19 | 2384441 |
20 | 5819576 |
21 | 14245384 |
22 | 34964611 |
23 | 86032272 |
24 | 212172668 |
25 | 524371704 |
26 | 1298509438 |
27 | 3221425567 |
28 | 8005623916 |
29 | 19926840746 |
30 | 49674610998 |
31 | 124006308008 |
[1,1,2,4,8,17,36,80,180,410,946,2203,5173,12233, 29108,69643,167437,404311,980125,2384441,5819576, 14245384,34964611,86032272,212172668,524371704, 1298509438,3221425567,8005623916,19926840746, 49674610998,124006308008] |