Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 3 |
7 | 8 |
8 | 16 |
9 | 35 |
10 | 74 |
11 | 166 |
12 | 367 |
13 | 831 |
14 | 1878 |
15 | 4299 |
16 | 9857 |
17 | 22775 |
18 | 52777 |
19 | 122957 |
20 | 287337 |
[1,0,1,1,2,3,8,16,35,74,166,367,831,1878,4299, 9857,22775,52777,122957,287337] |