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 | 4 |
| 2 | 6 |
| 3 | 14 |
| 4 | 38 |
| 5 | 62 |
| 6 | 74 |
| 7 | 158 |
| 8 | 194 |
| 9 | 278 |
| 10 | 314 |
| 11 | 398 |
| 12 | 422 |
| 13 | 458 |
| 14 | 542 |
| 15 | 614 |
| 16 | 662 |
| 17 | 674 |
| 18 | 734 |
| 19 | 758 |
| 20 | 878 |
| 21 | 998 |
| 22 | 1094 |
| 23 | 1154 |
| 24 | 1202 |
| 25 | 1214 |
| 26 | 1238 |
| 27 | 1322 |
| 28 | 1382 |
| 29 | 1454 |
| 30 | 1622 |
| 31 | 1658 |
| 32 | 1754 |
| 33 | 1874 |
| 34 | 1934 |
| 35 | 1994 |
| 36 | 2018 |
| 37 | 2138 |
| 38 | 2342 |
| 39 | 2474 |
| 40 | 2558 |
| 41 | 2594 |
| 42 | 2798 |
| 43 | 2858 |
| 44 | 2918 |
| 45 | 3062 |
| 46 | 3218 |
| 47 | 3254 |