Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 16 |
4 | 60 |
5 | 156 |
6 | 540 |
7 | 1296 |
8 | 4320 |
9 | 9936 |
10 | 32400 |
11 | 72576 |
12 | 233280 |
13 | 513216 |
14 | 1632960 |
15 | 3545856 |
16 | 11197440 |
17 | 24074496 |
18 | 75582720 |
19 | 161243136 |
20 | 503884800 |
21 | 1068235776 |
22 | 3325639680 |
23 | 7014076416 |
24 | 21767823360 |
25 | 45712429056 |
26 | 141490851840 |
[1,5,16,60,156,540,1296,4320,9936,32400,72576, 233280,513216,1632960,3545856,11197440,24074496, 75582720,161243136,503884800,1068235776, 3325639680,7014076416,21767823360,45712429056, 141490851840] |