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 | 1 |
| 2 | 260515 |
| 3 | 37362253 |
| 4 | 122925461 |
| 5 | 534483448 |
| 6 | 3083975227 |
| 7 | 902209779836 |
| 8 | 74357078147863 |
| 9 | 214112296674652 |
| 10 | 642336890023956 |
| 11 | 18190586279576483 |
| 12 | 248319196091979065 |
| 13 | 1108341089274117551 |
| 14 | 118554299812338354516058 |
| 15 | 1428599129020608582548671 |
| 16 | 4285797387061825747646013 |