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) |
|---|---|
| 0 | 10553 |
| 1 | 46054 |
| 2 | 91118 |
| 3 | 172237 |
| 4 | 904508 |
| 5 | 1709917 |
| 6 | 8908988 |
| 7 | 17807086 |
| 8 | 85877957 |
| 9 | 161855815 |
| 10 | 680413976 |
| 11 | 1359728062 |
| 12 | 3968007593 |
| 13 | 7925016286 |
| 14 | 14751121583 |
| 15 | 53263237324 |
| 16 | 95636473559 |
| 17 | 191173937218 |
| 18 | 1003913308409 |
| 19 | 10051946501410 |