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 | 9 |
| 2 | 24 |
| 3 | 39 |
| 4 | 57 |
| 5 | 84 |
| 6 | 144 |
| 7 | 150 |
| 8 | 165 |
| 9 | 207 |
| 10 | 219 |
| 11 | 234 |
| 12 | 249 |
| 13 | 252 |
| 14 | 267 |
| 15 | 309 |
| 16 | 324 |
| 17 | 357 |
| 18 | 402 |
| 19 | 414 |
| 20 | 507 |
| 21 | 522 |
| 22 | 534 |
| 23 | 555 |
| 24 | 570 |
| 25 | 639 |
| 26 | 654 |
| 27 | 759 |
| 28 | 765 |
| 29 | 777 |
| 30 | 792 |
| 31 | 795 |
| 32 | 882 |
| 33 | 924 |
| 34 | 927 |
| 35 | 942 |
| 36 | 969 |
| 37 | 1044 |
| 38 | 1065 |
| 39 | 1089 |
| 40 | 1155 |
| 41 | 1200 |
| 42 | 1215 |
| 43 | 1227 |
| 44 | 1389 |
| 45 | 1395 |
| 46 | 1437 |
| 47 | 1509 |
| 48 | 1530 |
| 49 | 1554 |
| 50 | 1557 |