n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 30 |
6 | 75 |
7 | 188 |
8 | 472 |
9 | 1186 |
10 | 2981 |
11 | 7494 |
12 | 18842 |
13 | 47376 |
14 | 119126 |
15 | 299545 |
16 | 753220 |
17 | 1894018 |
18 | 4762640 |
19 | 11976010 |
20 | 30114592 |
21 | 75725485 |
22 | 190417684 |
23 | 478820320 |
24 | 1204031670 |
25 | 3027633300 |
26 | 7613224740 |
27 | 19144059492 |
28 | 48139261637 |
29 | 121050006438 |
[1,1,2,5,12,30,75,188,472,1186,2981,7494,18842, 47376,119126,299545,753220,1894018,4762640, 11976010,30114592,75725485,190417684,478820320, 1204031670,3027633300,7613224740,19144059492, 48139261637,121050006438] |