This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 16666669 |
| 2 | 26666663 |
| 3 | 26666669 |
| 4 | 46666661 |
| 5 | 46666663 |
| 6 | 56666663 |
| 7 | 60666667 |
| 8 | 63666661 |
| 9 | 64666661 |
| 10 | 64666663 |
| 11 | 64666669 |
| 12 | 66066661 |
| 13 | 66166663 |
| 14 | 66466661 |
| 15 | 66466667 |
| 16 | 66466669 |
| 17 | 66606667 |
| 18 | 66616663 |
| 19 | 66626663 |
| 20 | 66646667 |
| 21 | 66656663 |