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 | 150851 |
| 2 | 452051 |
| 3 | 1325843 |
| 4 | 1441091 |
| 5 | 4974971 |
| 6 | 5016191 |
| 7 | 15139199 |
| 8 | 19020191 |
| 9 | 44695211 |
| 10 | 101276579 |
| 11 | 119378351 |
| 12 | 128665319 |
| 13 | 152814531 |
| 14 | 187155383 |
| 15 | 203789951 |
| 16 | 223782263 |
| 17 | 307367171 |
| 18 | 387833531 |
| 19 | 392534231 |
| 20 | 470579831 |
| 21 | 505473263 |
| 22 | 546748931 |
| 23 | 626717471 |
| 24 | 639969891 |
| 25 | 885510239 |
| 26 | 974471243 |
| 27 | 1147357559 |