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 | 3848163483 |
| 2 | 4462569999 |
| 3 | 4479677412 |
| 4 | 4586158119 |
| 5 | 4594661259 |
| 6 | 4594665192 |
| 7 | 4594700889 |
| 8 | 4625720379 |
| 9 | 4641588459 |
| 10 | 5644008999 |
| 11 | 5828410842 |
| 12 | 5833034823 |
| 13 | 5838252576 |
| 14 | 5848025709 |
| 15 | 6453471192 |
| 16 | 6617331999 |
| 17 | 6619097067 |
| 18 | 6686657169 |
| 19 | 7107126942 |
| 20 | 7230291999 |
| 21 | 7277907183 |