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 | 3 |
| 2 | 6 |
| 3 | 36 |
| 4 | 55 |
| 5 | 66 |
| 6 | 666 |
| 7 | 3655 |
| 8 | 5356 |
| 9 | 5565 |
| 10 | 6555 |
| 11 | 333336 |
| 12 | 3635556 |
| 13 | 5656566 |
| 14 | 35536665 |
| 15 | 56365653 |
| 16 | 56663335 |
| 17 | 63365653 |
| 18 | 655636366 |
| 19 | 53533355655 |
| 20 | 55663663653 |
| 21 | 533533653555 |
| 22 | 555533363556 |
| 23 | 6653355565366 |
| 24 | 555665666566566 |
| 25 | 35356355566555653 |
| 26 | 653366333366663536656 |