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 | 12 |
| 2 | 23 |
| 3 | 35 |
| 4 | 47 |
| 5 | 511 |
| 6 | 613 |
| 7 | 717 |
| 8 | 819 |
| 9 | 923 |
| 10 | 1029 |
| 11 | 1131 |
| 12 | 1237 |
| 13 | 1341 |
| 14 | 1443 |
| 15 | 1547 |
| 16 | 1653 |
| 17 | 1759 |
| 18 | 1861 |
| 19 | 1967 |
| 20 | 2071 |
| 21 | 2173 |
| 22 | 2279 |
| 23 | 2383 |
| 24 | 2489 |
| 25 | 2597 |
| 26 | 26101 |
| 27 | 27103 |
| 28 | 28107 |
| 29 | 29109 |
| 30 | 30113 |
| 31 | 31127 |
| 32 | 32131 |
| 33 | 33137 |
| 34 | 34139 |
| 35 | 35149 |
| 36 | 36151 |
| 37 | 37157 |
| 38 | 38163 |
| 39 | 39167 |
| 40 | 40173 |
| 41 | 41179 |
| 42 | 42181 |