Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 5 |
6 | 81 |
7 | 658 |
8 | 3830 |
9 | 18525 |
10 | 80587 |
11 | 330330 |
12 | 1312015 |
13 | 5132075 |
14 | 19946915 |
15 | 77383374 |
16 | 300272554 |
17 | 1166405717 |
18 | 4536991655 |
19 | 17671814690 |
20 | 68922126879 |
21 | 269127380699 |
22 | 1052047384687 |
23 | 4116712577510 |
24 | 16123798186665 |
25 | 63205298480275 |
26 | 247959260395901 |
27 | 973469705104278 |
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