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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 11 |
| 5 | 29 |
| 6 | 31 |
| 7 | 113 |
| 8 | 127 |
| 9 | 139 |
| 10 | 149 |
| 11 | 509 |
| 12 | 523 |
| 13 | 541 |
| 14 | 907 |
| 15 | 1069 |
| 16 | 1087 |
| 17 | 1151 |
| 18 | 1327 |
| 19 | 1361 |
| 20 | 1543 |
| 21 | 1669 |
| 22 | 1933 |
| 23 | 1951 |
| 24 | 2971 |
| 25 | 2999 |
| 26 | 3163 |
| 27 | 5381 |
| 28 | 5749 |
| 29 | 6421 |
| 30 | 7963 |
| 31 | 9551 |
| 32 | 10007 |
| 33 | 14143 |
| 34 | 15683 |
| 35 | 15727 |
| 36 | 15823 |
| 37 | 16183 |
| 38 | 19373 |
| 39 | 19609 |
| 40 | 20809 |
| 41 | 25471 |
| 42 | 28277 |
| 43 | 28351 |
| 44 | 31397 |
| 45 | 31469 |
| 46 | 31957 |
| 47 | 34061 |
| 48 | 34123 |
| 49 | 35671 |