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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 7 |
| 1 | 7 |
| 2 | 13 |
| 3 | 37 |
| 4 | 145 |
| 5 | 721 |
| 6 | 4321 |
| 7 | 30241 |
| 8 | 241921 |
| 9 | 2177281 |
| 10 | 21772801 |
| 11 | 239500801 |
| 12 | 2874009601 |
| 13 | 37362124801 |
| 14 | 523069747201 |
| 15 | 7846046208001 |
| 16 | 125536739328001 |
| 17 | 2134124568576001 |
| 18 | 38414242234368001 |
| 19 | 729870602452992001 |
[7,7,13,37,145,721,4321,30241,241921,2177281, 21772801,239500801,2874009601,37362124801, 523069747201,7846046208001,125536739328001, 2134124568576001,38414242234368001, 729870602452992001] |