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 | -28 |
| 1 | 72 |
| 2 | 172 |
| 3 | 272 |
| 4 | 372 |
| 5 | 472 |
| 6 | 572 |
| 7 | 672 |
| 8 | 772 |
| 9 | 872 |
| 10 | 972 |
| 11 | 1072 |
| 12 | 1172 |
| 13 | 1272 |
| 14 | 1372 |
| 15 | 1472 |
| 16 | 1572 |
| 17 | 1672 |
| 18 | 1772 |
| 19 | 1872 |
| 20 | 1972 |
| 21 | 2072 |
| 22 | 2172 |
| 23 | 2272 |
| 24 | 2372 |
| 25 | 2472 |
| 26 | 2572 |
| 27 | 2672 |
| 28 | 2772 |
| 29 | 2872 |
| 30 | 2972 |
| 31 | 3072 |
| 32 | 3172 |
| 33 | 3272 |
| 34 | 3372 |
| 35 | 3472 |
| 36 | 3572 |
| 37 | 3672 |
| 38 | 3772 |
| 39 | 3872 |
| 40 | 3972 |