n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 54 |
6 | 197 |
7 | 746 |
8 | 2916 |
9 | 11650 |
10 | 47418 |
11 | 195794 |
12 | 818347 |
13 | 3455173 |
14 | 14715502 |
15 | 63143438 |
16 | 272721871 |
17 | 1184697735 |
18 | 5172610484 |
19 | 22687623448 |
20 | 99918182347 |
21 | 441676607009 |
22 | 1958937661272 |
23 | 8714945481375 |
24 | 38879831980104 |
25 | 173900631360760 |
26 | 779664865945693 |
[0,1,2,5,16,54,197,746,2916,11650,47418,195794, 818347,3455173,14715502,63143438,272721871, 1184697735,5172610484,22687623448,99918182347, 441676607009,1958937661272,8714945481375, 38879831980104,173900631360760,779664865945693] |