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 | 23 |
| 2 | 47 |
| 3 | 71 |
| 4 | 191 |
| 5 | 311 |
| 6 | 383 |
| 7 | 599 |
| 8 | 647 |
| 9 | 719 |
| 10 | 839 |
| 11 | 863 |
| 12 | 911 |
| 13 | 983 |
| 14 | 1103 |
| 15 | 1367 |
| 16 | 1439 |
| 17 | 1511 |
| 18 | 1607 |
| 19 | 1871 |
| 20 | 2039 |
| 21 | 2399 |
| 22 | 2423 |
| 23 | 2447 |
| 24 | 2663 |
| 25 | 2687 |
| 26 | 2711 |
| 27 | 2927 |
| 28 | 3023 |
| 29 | 3191 |
| 30 | 3359 |
| 31 | 3623 |
| 32 | 3719 |
| 33 | 3767 |
| 34 | 4007 |
| 35 | 4079 |
| 36 | 4271 |
| 37 | 4679 |
| 38 | 4799 |
| 39 | 4871 |
| 40 | 4943 |
| 41 | 5039 |
| 42 | 5087 |
| 43 | 5303 |