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 | 1 |
| 2 | 36 |
| 3 | 66 |
| 4 | 88 |
| 5 | 257 |
| 6 | 268 |
| 7 | 279 |
| 8 | 448 |
| 9 | 369 |
| 10 | 459 |
| 11 | 666 |
| 12 | 578 |
| 13 | 579 |
| 14 | 678 |
| 15 | 1689 |
| 16 | 2558 |
| 17 | 789 |
| 18 | 1899 |
| 19 | 13557 |
| 20 | 999 |
| 21 | 3477 |
| 22 | 2589 |
| 23 | 2688 |
| 24 | 13578 |
| 25 | 3489 |
| 26 | 3588 |
| 27 | 2799 |
| 28 | 4569 |
| 29 | 4668 |
| 30 | 4677 |
| 31 | 5568 |
| 32 | 3699 |
| 33 | 3789 |
| 34 | 4599 |
| 35 | 14779 |
| 36 | 4689 |
| 37 | 5679 |
| 38 | 4789 |
| 39 | 25566 |
| 40 | 5788 |
| 41 | 6679 |
| 42 | 6778 |
| 43 | 34566 |
| 44 | 5889 |
| 45 | 117788 |
| 46 | 25569 |
| 47 | 33579 |