n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 3 |
3 | 5 |
4 | 10 |
5 | 24 |
6 | 50 |
7 | 120 |
8 | 270 |
9 | 640 |
10 | 1500 |
11 | 3600 |
12 | 8610 |
13 | 20880 |
14 | 50700 |
15 | 124024 |
16 | 304290 |
17 | 750120 |
18 | 1854400 |
19 | 4600200 |
20 | 11440548 |
21 | 28527320 |
22 | 71289000 |
23 | 178526880 |
24 | 447910470 |
25 | 1125750120 |
26 | 2833885800 |
27 | 7144449920 |
28 | 18036373140 |
29 | 45591631800 |
30 | 115381697740 |
31 | 292329067800 |
[1,3,3,5,10,24,50,120,270,640,1500,3600,8610, 20880,50700,124024,304290,750120,1854400,4600200, 11440548,28527320,71289000,178526880,447910470, 1125750120,2833885800,7144449920,18036373140, 45591631800,115381697740,292329067800] |