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 | 4 |
| 3 | 11 |
| 4 | 23 |
| 5 | 56 |
| 6 | 80 |
| 7 | 103 |
| 8 | 135 |
| 9 | 204 |
| 10 | 248 |
| 11 | 339 |
| 12 | 395 |
| 13 | 444 |
| 14 | 508 |
| 15 | 576 |
| 16 | 635 |
| 17 | 711 |
| 18 | 860 |
| 19 | 948 |
| 20 | 1119 |
| 21 | 1219 |
| 22 | 1304 |
| 23 | 1412 |
| 24 | 1619 |
| 25 | 1739 |
| 26 | 1968 |
| 27 | 2100 |
| 28 | 2211 |
| 29 | 2351 |
| 30 | 2495 |
| 31 | 2616 |
| 32 | 2768 |
| 33 | 3055 |
| 34 | 3219 |
| 35 | 3528 |
| 36 | 3704 |
| 37 | 3851 |
| 38 | 4035 |
| 39 | 4223 |
| 40 | 4380 |
| 41 | 4576 |
| 42 | 4943 |
| 43 | 5151 |
| 44 | 5540 |
| 45 | 5760 |
| 46 | 5943 |
| 47 | 6171 |
| 48 | 6596 |
| 49 | 6836 |
| 50 | 7283 |