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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 30 |
| 5 | 58 |
| 6 | 588 |
| 7 | 2388 |
| 8 | 17456 |
| 9 | 102874 |
| 10 | 731154 |
| 11 | 5027962 |
| 12 | 36610288 |
| 13 | 266876496 |
| 14 | 1982397806 |
| 15 | 14796809106 |
| 16 | 111298650288 |
| 17 | 840466993090 |
| 18 | 6372988144620 |
| 19 | 48466708273020 |
| 20 | 369602842446350 |
| 21 | 2824995007935614 |
| 22 | 21637397279211678 |
[0,2,2,30,58,588,2388,17456,102874,731154,5027962, 36610288,266876496,1982397806,14796809106, 111298650288,840466993090,6372988144620, 48466708273020,369602842446350,2824995007935614, 21637397279211678] |