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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
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 | 12 |
| 5 | 20 |
| 6 | 60 |
| 7 | 210 |
| 8 | 56 |
| 9 | 504 |
| 10 | 504 |
| 11 | 660 |
| 12 | 3960 |
| 13 | 5148 |
| 14 | 4004 |
| 15 | 4290 |
| 16 | 34320 |
| 17 | 17680 |
| 18 | 31824 |
| 19 | 302328 |
| 20 | 77520 |
| 21 | 813960 |
| 22 | 8953560 |
| 23 | 2288132 |
| 24 | 27457584 |
| 25 | 49031400 |
| 26 | 12498200 |
| 27 | 168725700 |
| 28 | 42948360 |
| 29 | 10925460 |
| 30 | 163881900 |
| 31 | 2540169450 |
| 32 | 645122400 |
| 33 | 327523680 |
| 34 | 5567902560 |
| 35 | 1412149200 |
[1,2,6,12,20,60,210,56,504,504,660,3960,5148,4004, 4290,34320,17680,31824,302328,77520,813960, 8953560,2288132,27457584,49031400,12498200, 168725700,42948360,10925460,163881900,2540169450, 645122400,327523680,5567902560,1412149200] |