n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 24 |
4 | 94 |
5 | 372 |
6 | 1508 |
7 | 6192 |
8 | 25638 |
9 | 106908 |
10 | 448356 |
11 | 1889040 |
12 | 7989676 |
13 | 33902504 |
14 | 144259944 |
15 | 615330784 |
16 | 2630199942 |
17 | 11263613484 |
18 | 48315367076 |
19 | 207556060816 |
20 | 892819376964 |
21 | 3845161246424 |
22 | 16578320962104 |
23 | 71548426931616 |
24 | 309070048163676 |
25 | 1336223562436632 |
[1,2,6,24,94,372,1508,6192,25638,106908,448356, 1889040,7989676,33902504,144259944,615330784, 2630199942,11263613484,48315367076,207556060816, 892819376964,3845161246424,16578320962104, 71548426931616,309070048163676,1336223562436632] |