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 | 4 |
| 3 | 6 |
| 4 | 19 |
| 5 | 21 |
| 6 | 29 |
| 7 | 31 |
| 8 | 94 |
| 9 | 96 |
| 10 | 104 |
| 11 | 106 |
| 12 | 144 |
| 13 | 146 |
| 14 | 154 |
| 15 | 156 |
| 16 | 469 |
| 17 | 471 |
| 18 | 479 |
| 19 | 481 |
| 20 | 519 |
| 21 | 521 |
| 22 | 529 |
| 23 | 531 |
| 24 | 719 |
| 25 | 721 |
| 26 | 729 |
| 27 | 731 |
| 28 | 769 |
| 29 | 771 |
| 30 | 779 |
| 31 | 781 |
| 32 | 2344 |
| 33 | 2346 |
| 34 | 2354 |
| 35 | 2356 |
| 36 | 2394 |
| 37 | 2396 |
| 38 | 2404 |
| 39 | 2406 |
| 40 | 2594 |
| 41 | 2596 |
| 42 | 2604 |
| 43 | 2606 |
| 44 | 2644 |
| 45 | 2646 |
| 46 | 2654 |
| 47 | 2656 |
| 48 | 3594 |
| 49 | 3596 |
| 50 | 3604 |