The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 12 |
| 6 | 24 |
| 7 | 48 |
| 8 | 132 |
| 9 | 222 |
| 10 | 234 |
| 11 | 266 |
| 12 | 364 |
| 13 | 418 |
| 14 | 468 |
| 15 | 555 |
| 16 | 663 |
| 17 | 666 |
| 18 | 2418 |
| 19 | 2442 |
| 20 | 3498 |
| 21 | 4218 |
| 22 | 4422 |
| 23 | 6216 |
| 24 | 6314 |
| 25 | 6612 |
| 26 | 8844 |
| 27 | 21714 |
| 28 | 26796 |
| 29 | 28842 |
| 30 | 41412 |
| 31 | 61446 |
| 32 | 62634 |
| 33 | 66234 |
| 34 | 82824 |
| 35 | 491946 |
| 36 | 641886 |
| 37 | 648186 |
| 38 | 6416718 |
[2,3,5,7,12,24,48,132,222,234,266,364,418,468,555, 663,666,2418,2442,3498,4218,4422,6216,6314,6612, 8844,21714,26796,28842,41412,61446,62634,66234, 82824,491946,641886,648186,6416718] |