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 | 8 |
| 4 | 13 |
| 5 | 22 |
| 6 | 31 |
| 7 | 44 |
| 8 | 57 |
| 9 | 74 |
| 10 | 91 |
| 11 | 112 |
| 12 | 133 |
| 13 | 158 |
| 14 | 183 |
| 15 | 212 |
| 16 | 241 |
| 17 | 274 |
| 18 | 307 |
| 19 | 344 |
| 20 | 381 |
| 21 | 422 |
| 22 | 463 |
| 23 | 508 |
| 24 | 553 |
| 25 | 602 |
| 26 | 651 |
| 27 | 704 |
| 28 | 757 |
| 29 | 814 |
| 30 | 871 |
| 31 | 932 |
| 32 | 993 |
| 33 | 1058 |
| 34 | 1123 |
| 35 | 1192 |
| 36 | 1261 |
| 37 | 1334 |
| 38 | 1407 |
| 39 | 1484 |
| 40 | 1561 |
| 41 | 1642 |
| 42 | 1723 |
| 43 | 1808 |
| 44 | 1893 |
| 45 | 1982 |
| 46 | 2071 |
| 47 | 2164 |
| 48 | 2257 |
| 49 | 2354 |
| 50 | 2451 |
| 51 | 2552 |