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 | 13 |
| 5 | 21 |
| 6 | 34 |
| 7 | 40 |
| 8 | 46 |
| 9 | 60 |
| 10 | 66 |
| 11 | 72 |
| 12 | 97 |
| 13 | 121 |
| 14 | 145 |
| 15 | 177 |
| 16 | 201 |
| 17 | 225 |
| 18 | 268 |
| 19 | 286 |
| 20 | 304 |
| 21 | 346 |
| 22 | 364 |
| 23 | 382 |
| 24 | 424 |
| 25 | 442 |
| 26 | 460 |
| 27 | 510 |
| 28 | 528 |
| 29 | 546 |
| 30 | 588 |
| 31 | 606 |
| 32 | 624 |
| 33 | 666 |
| 34 | 684 |
| 35 | 702 |
| 36 | 781 |
| 37 | 853 |
| 38 | 925 |
| 39 | 1021 |
| 40 | 1093 |
| 41 | 1165 |
| 42 | 1261 |
| 43 | 1333 |
| 44 | 1405 |
| 45 | 1509 |
| 46 | 1581 |
| 47 | 1653 |
| 48 | 1749 |
| 49 | 1821 |
| 50 | 1893 |
| 51 | 1989 |
| 52 | 2061 |
| 53 | 2133 |