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 | 30 |
| 3 | 503 |
| 4 | 507 |
| 5 | 509 |
| 6 | 510 |
| 7 | 1015 |
| 8 | 1019 |
| 9 | 1021 |
| 10 | 1022 |
| 11 | 2015 |
| 12 | 2031 |
| 13 | 2039 |
| 14 | 2043 |
| 15 | 2045 |
| 16 | 2046 |
| 17 | 3071 |
| 18 | 4031 |
| 19 | 4063 |
| 20 | 4079 |
| 21 | 4087 |
| 22 | 4091 |
| 23 | 4093 |
| 24 | 4094 |
| 25 | 8063 |
| 26 | 8190 |
| 27 | 30719 |
| 28 | 32703 |
| 29 | 65023 |
| 30 | 65407 |
| 31 | 65503 |
| 32 | 98303 |
| 33 | 129023 |
| 34 | 130559 |
| 35 | 130815 |
| 36 | 130943 |
| 37 | 131039 |
| 38 | 131055 |