The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 111919 |
| 3 | 111919191919 |
| 4 | 11191919191937373737 |
| 5 | 111919191919373737372121212121 |
| 6 | 111919191919373737372121212121717171717171 |
| 7 | 111919191919373737372121212121717171717171101101101101101101101 |
[11,111919,111919191919,11191919191937373737, 111919191919373737372121212121, 111919191919373737372121212121717171717171, 11191919191937373737212121212171717171717110110110\ 1101101101101] |