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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 7 |
| 6 | 17 |
| 7 | 27 |
| 8 | 37 |
| 9 | 87 |
| 10 | 137 |
| 11 | 157 |
| 12 | 187 |
| 13 | 247 |
| 14 | 437 |
| 15 | 687 |
| 16 | 787 |
| 17 | 937 |
| 18 | 1237 |
| 19 | 2187 |
| 20 | 3437 |
| 21 | 3937 |
| 22 | 4687 |
| 23 | 6187 |
| 24 | 8437 |
| 25 | 10937 |
| 26 | 17187 |
| 27 | 19687 |
| 28 | 23437 |
| 29 | 30937 |
| 30 | 42187 |
| 31 | 54687 |
| 32 | 55687 |
| 33 | 85937 |
| 34 | 98437 |
| 35 | 117187 |
| 36 | 154687 |
| 37 | 210937 |
| 38 | 223437 |
| 39 | 273437 |
| 40 | 278437 |
| 41 | 304687 |
| 42 | 429687 |
| 43 | 492187 |
| 44 | 585937 |