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) |
|---|---|
| 4 | 5 |
| 5 | 15 |
| 6 | 31 |
| 7 | 54 |
| 8 | 85 |
| 9 | 125 |
| 10 | 175 |
| 11 | 236 |
| 12 | 309 |
| 13 | 395 |
| 14 | 495 |
| 15 | 610 |
| 16 | 741 |
| 17 | 889 |
| 18 | 1055 |
| 19 | 1240 |
| 20 | 1445 |
| 21 | 1671 |
| 22 | 1919 |
| 23 | 2190 |
| 24 | 2485 |
| 25 | 2805 |
| 26 | 3151 |
| 27 | 3524 |
| 28 | 3925 |
| 29 | 4355 |
| 30 | 4815 |
| 31 | 5306 |
| 32 | 5829 |
| 33 | 6385 |
| 34 | 6975 |
| 35 | 7600 |
| 36 | 8261 |
| 37 | 8959 |
| 38 | 9695 |
| 39 | 10470 |
| 40 | 11285 |
| 41 | 12141 |
| 42 | 13039 |