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 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 18 |
| 5 | 25 |
| 6 | 39 |
| 7 | 49 |
| 8 | 72 |
| 9 | 84 |
| 10 | 110 |
| 11 | 121 |
| 12 | 166 |
| 13 | 169 |
| 14 | 217 |
| 15 | 230 |
| 16 | 292 |
| 17 | 289 |
| 18 | 372 |
| 19 | 361 |
| 20 | 455 |
| 21 | 455 |
| 22 | 539 |
| 23 | 529 |
| 24 | 670 |
| 25 | 630 |
| 26 | 754 |
| 27 | 756 |
| 28 | 889 |
| 29 | 841 |
| 30 | 1041 |
| 31 | 961 |
| 32 | 1168 |
| 33 | 1122 |
| 34 | 1292 |
| 35 | 1232 |
| 36 | 1530 |
| 37 | 1369 |
| 38 | 1615 |
| 39 | 1573 |
| 40 | 1828 |
| 41 | 1681 |
| 42 | 2037 |
| 43 | 1849 |
| 44 | 2200 |
| 45 | 2109 |
| 46 | 2369 |
| 47 | 2209 |
| 48 | 2716 |
| 49 | 2408 |
| 50 | 2820 |
| 51 | 2686 |