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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 33 |
| 4 | 60 |
| 5 | 303 |
| 6 | 546 |
| 7 | 2733 |
| 8 | 4920 |
| 9 | 24603 |
| 10 | 44286 |
| 11 | 221433 |
| 12 | 398580 |
| 13 | 1992903 |
| 14 | 3587226 |
| 15 | 17936133 |
| 16 | 32285040 |
| 17 | 161425203 |
| 18 | 290565366 |
| 19 | 1452826833 |
| 20 | 2615088300 |
| 21 | 13075441503 |
| 22 | 23535794706 |
| 23 | 117678973533 |
| 24 | 211822152360 |
| 25 | 1059110761803 |
| 26 | 1906399371246 |
| 27 | 9531996856233 |
[1,3,6,33,60,303,546,2733,4920,24603,44286,221433, 398580,1992903,3587226,17936133,32285040, 161425203,290565366,1452826833,2615088300, 13075441503,23535794706,117678973533,211822152360, 1059110761803,1906399371246,9531996856233] |