Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 10 |
3 | 1 |
4 | 55 |
5 | 2575 |
6 | 1 |
7 | 550 |
8 | 253000 |
9 | 250525000 |
10 | 1 |
11 | 5050 |
12 | 25007500 |
13 | 250025500000 |
14 | 2500000075000000 |
15 | 1 |
16 | 50500 |
17 | 2500300000 |
18 | 250002775000000 |
19 | 25000000255000000000 |
20 | 2500000000502500000000000 |
21 | 1 |
22 | 500500 |
23 | 250000750000 |
24 | 250000250500000000 |
25 | 250000000000750000000000 |
26 | 250000000000250500000000000000 |
27 | 250000000000000000750000000000000000 |
[1,1,10,1,55,2575,1,550,253000,250525000,1,5050, 25007500,250025500000,2500000075000000,1,50500, 2500300000,250002775000000,25000000255000000000, 2500000000502500000000000,1,500500,250000750000, 250000250500000000,250000000000750000000000, 250000000000250500000000000000, 250000000000000000750000000000000000] |