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 | 4 |
| 2 | 7 |
| 3 | 14 |
| 4 | 23 |
| 5 | 84 |
| 6 | 107 |
| 7 | 120 |
| 8 | 135 |
| 9 | 172 |
| 10 | 183 |
| 11 | 234 |
| 12 | 283 |
| 13 | 396 |
| 14 | 433 |
| 15 | 446 |
| 16 | 519 |
| 17 | 588 |
| 18 | 617 |
| 19 | 638 |
| 20 | 661 |
| 21 | 680 |
| 22 | 695 |
| 23 | 706 |
| 24 | 725 |
| 25 | 758 |
| 26 | 783 |
| 27 | 854 |
| 28 | 891 |
| 29 | 1000 |
| 30 | 1043 |
| 31 | 1064 |
| 32 | 1119 |
| 33 | 1226 |
| 34 | 1283 |
| 35 | 1458 |
| 36 | 1469 |
| 37 | 1490 |
| 38 | 1521 |
| 39 | 1618 |
| 40 | 1661 |
| 41 | 1708 |
| 42 | 1765 |
| 43 | 2046 |
| 44 | 2157 |
| 45 | 2224 |
| 46 | 2333 |
| 47 | 2428 |
| 48 | 2507 |
| 49 | 2516 |