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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 54 |
| 3 | 126 |
| 4 | 294 |
| 5 | 672 |
| 6 | 1536 |
| 7 | 3552 |
| 8 | 8214 |
| 9 | 19092 |
| 10 | 44376 |
| 11 | 103200 |
| 12 | 240000 |
| 13 | 558000 |
| 14 | 1297350 |
| 15 | 3015990 |
| 16 | 7011366 |
| 17 | 16299318 |
| 18 | 37891014 |
| 19 | 88085676 |
| 20 | 204773784 |
| 21 | 476041212 |
| 22 | 1106661366 |
| 23 | 2572675992 |
| 24 | 5980747104 |
| 25 | 13903551072 |
| 26 | 32321836896 |
| 27 | 75139155000 |
[3,54,126,294,672,1536,3552,8214,19092,44376, 103200,240000,558000,1297350,3015990,7011366, 16299318,37891014,88085676,204773784,476041212, 1106661366,2572675992,5980747104,13903551072, 32321836896,75139155000] |