Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 5 |
3 | 18 |
4 | 126 |
5 | 737 |
6 | 4551 |
7 | 27692 |
8 | 169131 |
9 | 1032173 |
10 | 6300804 |
11 | 38460963 |
12 | 234775180 |
13 | 1433121527 |
14 | 8748112011 |
15 | 53400529535 |
16 | 325969389167 |
17 | 1989793771357 |
18 | 12146168927085 |
19 | 74143070289741 |
20 | 452586729708259 |
21 | 2762695786609647 |
[0,5,18,126,737,4551,27692,169131,1032173,6300804, 38460963,234775180,1433121527,8748112011, 53400529535,325969389167,1989793771357, 12146168927085,74143070289741,452586729708259, 2762695786609647] |