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 | 2 |
5 | 22 |
6 | 152 |
7 | 842 |
8 | 4084 |
9 | 18116 |
10 | 75408 |
11 | 299730 |
12 | 1152834 |
13 | 4338280 |
14 | 16126958 |
15 | 59713888 |
16 | 221713192 |
17 | 829301072 |
18 | 3132108250 |
19 | 11945717358 |
20 | 45938159040 |
21 | 177695375802 |
22 | 689616061412 |
23 | 2679197337100 |
24 | 10403108215760 |
25 | 40332521702522 |
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