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 | 4 |
| 3 | 18 |
| 4 | 19 |
| 5 | 23 |
| 6 | 24 |
| 7 | 93 |
| 8 | 94 |
| 9 | 98 |
| 10 | 99 |
| 11 | 118 |
| 12 | 119 |
| 13 | 123 |
| 14 | 124 |
| 15 | 468 |
| 16 | 469 |
| 17 | 473 |
| 18 | 474 |
| 19 | 493 |
| 20 | 494 |
| 21 | 498 |
| 22 | 499 |
| 23 | 593 |
| 24 | 594 |
| 25 | 598 |
| 26 | 599 |
| 27 | 618 |
| 28 | 619 |
| 29 | 623 |
| 30 | 624 |
| 31 | 2343 |
| 32 | 2344 |
| 33 | 2348 |
| 34 | 2349 |
| 35 | 2368 |
| 36 | 2369 |
| 37 | 2373 |
| 38 | 2374 |
| 39 | 2468 |
| 40 | 2469 |
| 41 | 2473 |
| 42 | 2474 |
| 43 | 2493 |
| 44 | 2494 |
| 45 | 2498 |