Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 26 |
5 | 155 |
6 | 1225 |
7 | 12411 |
8 | 156416 |
9 | 2388060 |
10 | 43159172 |
11 | 905135396 |
12 | 21655104900 |
13 | 582527203011 |
14 | 17404200037095 |
15 | 571581950390602 |
16 | 20454815744801708 |
17 | 791762421402479311 |
18 | 32941802599154381634 |
19 | 1465274545936840236164 |
20 | 69358520116965601147778 |
[1,2,6,26,155,1225,12411,156416,2388060,43159172, 905135396,21655104900,582527203011,17404200037095, 571581950390602,20454815744801708, 791762421402479311,32941802599154381634, 1465274545936840236164,69358520116965601147778] |