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 | 18 |
| 2 | 216 |
| 3 | 24966 |
| 4 | 228246 |
| 5 | 299790 |
| 6 | 403806 |
| 7 | 413046 |
| 8 | 446310 |
| 9 | 514686 |
| 10 | 760470 |
| 11 | 948966 |
| 12 | 1019190 |
| 13 | 1087566 |
| 14 | 1355526 |
| 15 | 1374006 |
| 16 | 1471950 |
| 17 | 1582830 |
| 18 | 1715886 |
| 19 | 2159406 |
| 20 | 2266590 |
| 21 | 2334966 |
| 22 | 2589990 |
| 23 | 2833926 |
| 24 | 3652590 |
| 25 | 3661830 |
| 26 | 3720966 |
| 27 | 3874350 |