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 | 5 |
| 2 | 7 |
| 3 | 19 |
| 4 | 41 |
| 5 | 197 |
| 6 | 2549 |
| 7 | 4159 |
| 8 | 8467 |
| 9 | 9433 |
| 10 | 26701 |
| 11 | 27551 |
| 12 | 46817 |
| 13 | 57037 |
| 14 | 91097 |
| 15 | 130859 |
| 16 | 153281 |
| 17 | 157049 |
| 18 | 197683 |
| 19 | 351727 |
| 20 | 423103 |
| 21 | 466181 |
| 22 | 517991 |
| 23 | 526291 |
| 24 | 567181 |
| 25 | 575231 |
| 26 | 652903 |
| 27 | 663167 |
| 28 | 772339 |
| 29 | 1055231 |
| 30 | 1062013 |
| 31 | 1088239 |
| 32 | 1171199 |
| 33 | 1232461 |
| 34 | 1551871 |
| 35 | 1603297 |
| 36 | 1662833 |
| 37 | 2782469 |
| 38 | 2920531 |
| 39 | 2957917 |
| 40 | 3226159 |