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 | 294409 |
| 2 | 488881 |
| 3 | 1152271 |
| 4 | 3057601 |
| 5 | 3828001 |
| 6 | 6189121 |
| 7 | 17098369 |
| 8 | 19384289 |
| 9 | 53711113 |
| 10 | 56052361 |
| 11 | 64377991 |
| 12 | 82929001 |
| 13 | 115039081 |
| 14 | 118901521 |
| 15 | 171454321 |
| 16 | 172947529 |
| 17 | 214852609 |
| 18 | 216821881 |
| 19 | 228842209 |
| 20 | 279377281 |
| 21 | 288120421 |
| 22 | 328573477 |
| 23 | 366652201 |
| 24 | 492559141 |
| 25 | 542497201 |