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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 | 7 |
| 2 | 31 |
| 3 | 109 |
| 4 | 331 |
| 5 | 4529 |
| 6 | 11453 |
| 7 | 190433 |
| 8 | 61391 |
| 9 | 928943 |
| 10 | 9677971 |
| 11 | 214858067 |
| 12 | 60236303 |
| 13 | 10492980947 |
| 14 | 137504412401 |
| 15 | 180206776249 |
| 16 | 2272545257401 |
| 17 | 68446106098751 |
| 18 | 119418042814439 |
| 19 | 3899046884359 |
| 20 | 33130663362484669 |
[1,7,31,109,331,4529,11453,190433,61391,928943, 9677971,214858067,60236303,10492980947, 137504412401,180206776249,2272545257401, 68446106098751,119418042814439,3899046884359, 33130663362484669] |