Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 24 |
4 | 108 |
5 | 406 |
6 | 1908 |
7 | 7289 |
8 | 34248 |
9 | 131766 |
10 | 623700 |
11 | 2416836 |
12 | 11487528 |
13 | 44745468 |
14 | 213451560 |
15 | 834897375 |
16 | 3993910416 |
17 | 15673923910 |
18 | 75152083716 |
19 | 295737641768 |
20 | 1420670333640 |
21 | 5603322265428 |
22 | 26960309526744 |
23 | 106539505068194 |
24 | 513309625743600 |
25 | 2031786103702780 |
26 | 9800639852315208 |
[1,6,24,108,406,1908,7289,34248,131766,623700, 2416836,11487528,44745468,213451560,834897375, 3993910416,15673923910,75152083716,295737641768, 1420670333640,5603322265428,26960309526744, 106539505068194,513309625743600,2031786103702780, 9800639852315208] |