The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 33 |
| 3 | 79 |
| 4 | 107 |
| 5 | 311 |
| 6 | 487 |
| 7 | 665 |
| 8 | 857 |
| 9 | 2293 |
| 10 | 3523 |
| 11 | 13909 |
| 12 | 26713 |
| 13 | 29351 |
| 14 | 59801 |
| 15 | 70877 |
| 16 | 296475 |
| 17 | 3201195 |
| 18 | 5188215 |
| 19 | 6524653 |
| 20 | 8035685 |
| 21 | 121139393 |
| 22 | 140879803 |
[1,33,79,107,311,487,665,857,2293,3523,13909, 26713,29351,59801,70877,296475,3201195,5188215, 6524653,8035685,121139393,140879803] |