Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 2 |
4 | 21 |
5 | 4 |
6 | 84 |
7 | 449 |
8 | 252 |
9 | 2662 |
10 | 9933 |
11 | 10616 |
12 | 75768 |
13 | 229825 |
14 | 374472 |
15 | 2050778 |
16 | 5575269 |
17 | 11965468 |
18 | 54216876 |
19 | 141011585 |
20 | 359708580 |
21 | 1420577566 |
22 | 3680660445 |
23 | 10395035312 |
24 | 37193449776 |
25 | 98083939969 |
26 | 292682641104 |
27 | 977230325234 |
[0,1,0,2,21,4,84,449,252,2662,9933,10616,75768, 229825,374472,2050778,5575269,11965468,54216876, 141011585,359708580,1420577566,3680660445, 10395035312,37193449776,98083939969,292682641104, 977230325234] |