Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 0 |
4 | 2 |
5 | 12 |
6 | 2 |
7 | 9 |
8 | 1200 |
9 | 3280 |
10 | 12 |
11 | 44 |
12 | 498960 |
13 | 97193600 |
14 | 5972400 |
15 | 312 |
16 | 265 |
17 | 415981440 |
18 | 14591060915200 |
19 | 73866846715200 |
20 | 31918489344 |
21 | 9600 |
22 | 1854 |
23 | 615853022400 |
24 | 7390721380256614400 |
25 | 9022243072072662432000 |
26 | 287350869074488547328 |
27 | 393956489203200 |
28 | 416880 |
29 | 14833 |
30 | 1477095102362880 |
[0,1,0,2,12,2,9,1200,3280,12,44,498960,97193600, 5972400,312,265,415981440,14591060915200, 73866846715200,31918489344,9600,1854,615853022400, 7390721380256614400,9022243072072662432000, 287350869074488547328,393956489203200,416880, 14833,1477095102362880] |