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 | 902501 |
| 2 | 10824101 |
| 3 | 19096901 |
| 4 | 26832401 |
| 5 | 40322501 |
| 6 | 166926401 |
| 7 | 255360401 |
| 8 | 309760001 |
| 9 | 335622401 |
| 10 | 338928101 |
| 11 | 404814401 |
| 12 | 412090001 |
| 13 | 430562501 |
| 14 | 441840401 |
| 15 | 651270401 |
| 16 | 702780101 |
| 17 | 885062501 |
| 18 | 1006792901 |
| 19 | 1029768101 |
| 20 | 1160764901 |