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 | 7 |
| 3 | 7 |
| 4 | 13 |
| 5 | 23 |
| 6 | 23 |
| 7 | 31 |
| 8 | 47 |
| 9 | 61 |
| 10 | 79 |
| 11 | 113 |
| 12 | 113 |
| 13 | 127 |
| 14 | 167 |
| 15 | 241 |
| 16 | 251 |
| 17 | 283 |
| 18 | 337 |
| 19 | 359 |
| 20 | 509 |
| 21 | 523 |
| 22 | 619 |
| 23 | 727 |
| 24 | 839 |
| 25 | 953 |
| 26 | 1021 |
| 27 | 1327 |
| 28 | 1367 |
| 29 | 1669 |
| 30 | 1847 |
| 31 | 2039 |
| 32 | 2179 |
| 33 | 2179 |
| 34 | 2207 |
| 35 | 2399 |
| 36 | 2803 |
| 37 | 3121 |
| 38 | 3469 |
| 39 | 3719 |
| 40 | 4093 |
| 41 | 4483 |
| 42 | 4909 |
| 43 | 5039 |
| 44 | 5323 |
| 45 | 6229 |
| 46 | 6553 |
| 47 | 6857 |
| 48 | 6883 |
| 49 | 7919 |