Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 42 |
4 | 200 |
5 | 910 |
6 | 4032 |
7 | 17556 |
8 | 75504 |
9 | 321750 |
10 | 1361360 |
11 | 5727436 |
12 | 23984688 |
13 | 100053772 |
14 | 416024000 |
15 | 1725013800 |
16 | 7135405920 |
17 | 29452939110 |
18 | 121347523440 |
19 | 499132441500 |
20 | 2050025300400 |
21 | 8408638258020 |
22 | 34448503964160 |
23 | 140974630569240 |
24 | 576340150932000 |
25 | 2354075068866300 |
[1,8,42,200,910,4032,17556,75504,321750,1361360, 5727436,23984688,100053772,416024000,1725013800, 7135405920,29452939110,121347523440,499132441500, 2050025300400,8408638258020,34448503964160, 140974630569240,576340150932000,2354075068866300] |