Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 30 |
4 | 156 |
5 | 960 |
6 | 6840 |
7 | 55440 |
8 | 504000 |
9 | 5080320 |
10 | 56246400 |
11 | 678585600 |
12 | 8861529600 |
13 | 124540416000 |
14 | 1874333260800 |
15 | 30076510464000 |
16 | 512608352256000 |
17 | 9247873130496000 |
18 | 176065276907520000 |
19 | 3527707911856128000 |
20 | 74203511249387520000 |
[1,2,7,30,156,960,6840,55440,504000,5080320, 56246400,678585600,8861529600,124540416000, 1874333260800,30076510464000,512608352256000, 9247873130496000,176065276907520000, 3527707911856128000,74203511249387520000] |