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 | 121 |
| 2 | 2960 |
| 3 | 92052 |
| 4 | 2870927 |
| 5 | 89130069 |
| 6 | 2775259622 |
| 7 | 86190450233 |
| 8 | 2677639248483 |
| 9 | 83164917517453 |
| 10 | 2583078930390035 |
| 11 | 80227727864116428 |
| 12 | 2491794046923957866 |
| 13 | 77392440292663757309 |
| 14 | 2403726490469501987884 |
| 15 | 74657152069390240763825 |