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) |
|---|---|
| 0 | 3 |
| 1 | 7 |
| 2 | 19 |
| 3 | 39 |
| 4 | 67 |
| 5 | 103 |
| 6 | 147 |
| 7 | 199 |
| 8 | 259 |
| 9 | 327 |
| 10 | 403 |
| 11 | 487 |
| 12 | 579 |
| 13 | 679 |
| 14 | 787 |
| 15 | 903 |
| 16 | 1027 |
| 17 | 1159 |
| 18 | 1299 |
| 19 | 1447 |
| 20 | 1603 |
| 21 | 1767 |
| 22 | 1939 |
| 23 | 2119 |
| 24 | 2307 |
| 25 | 2503 |
| 26 | 2707 |
| 27 | 2919 |
| 28 | 3139 |
| 29 | 3367 |
| 30 | 3603 |
| 31 | 3847 |
| 32 | 4099 |
| 33 | 4359 |
| 34 | 4627 |
| 35 | 4903 |
| 36 | 5187 |
| 37 | 5479 |
| 38 | 5779 |
| 39 | 6087 |
| 40 | 6403 |
| 41 | 6727 |
| 42 | 7059 |
| 43 | 7399 |
| 44 | 7747 |
| 45 | 8103 |
| 46 | 8467 |
| 47 | 8839 |