n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 18 |
4 | 65 |
5 | 235 |
6 | 924 |
7 | 3584 |
8 | 14685 |
9 | 59739 |
10 | 252404 |
11 | 1057050 |
12 | 4552029 |
13 | 19472054 |
14 | 85142974 |
15 | 369881012 |
16 | 1635207275 |
17 | 7189370970 |
18 | 32073487208 |
19 | 142355800384 |
20 | 639620083601 |
21 | 2860850548252 |
22 | 12931842528134 |
23 | 58210175585589 |
24 | 264437645539445 |
25 | 1196711869085656 |
26 | 5459851377934327 |
27 | 24821711727873379 |
[1,2,6,18,65,235,924,3584,14685,59739,252404, 1057050,4552029,19472054,85142974,369881012, 1635207275,7189370970,32073487208,142355800384, 639620083601,2860850548252,12931842528134, 58210175585589,264437645539445,1196711869085656, 5459851377934327,24821711727873379] |