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 | 12 |
| 4 | 21 |
| 5 | 52 |
| 6 | 57 |
| 7 | 91 |
| 8 | 121 |
| 9 | 136 |
| 10 | 211 |
| 11 | 192 |
| 12 | 226 |
| 13 | 409 |
| 14 | 331 |
| 15 | 367 |
| 16 | 406 |
| 17 | 511 |
| 18 | 507 |
| 19 | 886 |
| 20 | 637 |
| 21 | 772 |
| 22 | 721 |
| 23 | 871 |
| 24 | 952 |
| 25 | 1102 |
| 26 | 1066 |
| 27 | 1227 |
| 28 | 1192 |
| 29 | 1641 |
| 30 | 1621 |
| 31 | 1396 |
| 32 | 1381 |
| 33 | 1501 |
| 34 | 1732 |
| 35 | 1792 |
| 36 | 1927 |
| 37 | 1942 |
| 38 | 2401 |
| 39 | 2611 |
| 40 | 2551 |
| 41 | 2422 |
| 42 | 2557 |
| 43 | 2887 |
| 44 | 2821 |
| 45 | 3136 |
| 46 | 3271 |
| 47 | 3607 |
| 48 | 3376 |