The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 21 |
| 4 | 25 |
| 5 | 28 |
| 6 | 33 |
| 7 | 66 |
| 8 | 122 |
| 9 | 140 |
| 10 | 142 |
| 11 | 188 |
| 12 | 307 |
| 13 | 322 |
| 14 | 349 |
| 15 | 1007 |
| 16 | 1052 |
[1,11,21,25,28,33,66,122,140,142,188,307,322,349, 1007,1052] |