Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 22 |
3 | 142 |
4 | 1005 |
5 | 7546 |
6 | 59033 |
7 | 475962 |
8 | 3927204 |
9 | 33001024 |
10 | 281449964 |
11 | 2429922400 |
12 | 21196031340 |
13 | 186521336460 |
14 | 1653830553417 |
15 | 14761130834428 |
16 | 132516050272100 |
17 | 1195778542160992 |
18 | 10839917478886459 |
19 | 98671228898404032 |
20 | 901509955793840923 |
[1,4,22,142,1005,7546,59033,475962,3927204, 33001024,281449964,2429922400,21196031340, 186521336460,1653830553417,14761130834428, 132516050272100,1195778542160992, 10839917478886459,98671228898404032, 901509955793840923] |