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 | 3918251 |
| 2 | 18727199 |
| 3 | 395564539 |
| 4 | 397687709 |
| 5 | 503720279 |
| 6 | 873201911 |
| 7 | 1088927209 |
| 8 | 1329433951 |
| 9 | 2108335769 |
| 10 | 2376506131 |
| 11 | 3684190621 |
| 12 | 3728773019 |
| 13 | 3934099049 |
| 14 | 3971294419 |
| 15 | 4272771301 |
| 16 | 5047170421 |
| 17 | 5091014389 |
| 18 | 5380213021 |
| 19 | 6187560259 |
| 20 | 6219076681 |
| 21 | 7243803841 |
| 22 | 8309591011 |
| 23 | 8448425231 |