n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | 4 |
4 | 6 |
5 | 14 |
6 | 36 |
7 | 114 |
8 | 450 |
9 | 2268 |
10 | 14442 |
11 | 118686 |
12 | 1264678 |
13 | 17519842 |
14 | 318273566 |
15 | 7607402556 |
16 | 240151303078 |
17 | 10055927801538 |
18 | 559859566727028 |
19 | 41582482495661986 |
20 | 4129785050606801246 |
21 | 549628445573614296188 |
22 | 98256218721544814784486 |
23 | 23631541930531250077261282 |
[1,2,2,4,6,14,36,114,450,2268,14442,118686, 1264678,17519842,318273566,7607402556, 240151303078,10055927801538,559859566727028, 41582482495661986,4129785050606801246, 549628445573614296188,98256218721544814784486, 23631541930531250077261282] |