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 | 761511353 |
| 2 | 615113531 |
| 3 | 790626413 |
| 4 | 402591377 |
| 5 | 137740231 |
| 6 | 314407777 |
| 7 | 727610617 |
| 8 | 328403287 |
| 9 | 869352769 |
| 10 | 939666571 |
| 11 | 151904453 |
| 12 | 258260581 |
| 13 | 592048309 |
| 14 | 830981887 |
| 15 | 887327003 |
| 16 | 666711043 |
| 17 | 435895087 |
| 18 | 358950871 |
| 19 | 577528379 |
| 20 | 250269737 |
| 21 | 581500063 |