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 | 1 |
| 2 | 1488 |
| 3 | 3381 |
| 4 | 14889 |
| 5 | 18489 |
| 6 | 181965 |
| 7 | 262989 |
| 8 | 338646 |
| 9 | 358489 |
| 10 | 367589 |
| 11 | 437189 |
| 12 | 438329 |
| 13 | 479285 |
| 14 | 781839 |
| 15 | 964941 |
| 16 | 1456589 |
| 17 | 1763954 |
| 18 | 2579285 |
| 19 | 2868489 |
| 20 | 3365285 |
| 21 | 3419389 |
| 22 | 3451988 |
| 23 | 3584889 |
| 24 | 3625619 |
| 25 | 4378829 |
| 26 | 4653989 |
| 27 | 6868877 |
| 28 | 7295986 |
| 29 | 9548479 |
| 30 | 14529839 |
| 31 | 14534488 |