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 | 3 |
| 3 | 9 |
| 4 | 19 |
| 5 | 33 |
| 6 | 51 |
| 7 | 74 |
| 8 | 102 |
| 9 | 135 |
| 10 | 173 |
| 11 | 216 |
| 12 | 264 |
| 13 | 318 |
| 14 | 378 |
| 15 | 444 |
| 16 | 516 |
| 17 | 594 |
| 18 | 678 |
| 19 | 768 |
| 20 | 864 |
| 21 | 966 |
| 22 | 1074 |
| 23 | 1188 |
| 24 | 1308 |
| 25 | 1435 |
| 26 | 1569 |
| 27 | 1710 |
| 28 | 1858 |
| 29 | 2013 |
| 30 | 2175 |
| 31 | 2344 |
| 32 | 2520 |
| 33 | 2703 |
| 34 | 2893 |
| 35 | 3090 |
| 36 | 3294 |
| 37 | 3505 |
| 38 | 3723 |
| 39 | 3948 |
| 40 | 4180 |
| 41 | 4419 |
| 42 | 4665 |
| 43 | 4918 |
| 44 | 5178 |
| 45 | 5445 |
| 46 | 5719 |
| 47 | 6000 |
| 48 | 6288 |
| 49 | 6584 |
| 50 | 6888 |
| 51 | 7200 |
| 52 | 7520 |
| 53 | 7848 |