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 | 63973 |
| 2 | 126217 |
| 3 | 748657 |
| 4 | 4463641 |
| 5 | 6054985 |
| 6 | 9890881 |
| 7 | 10837321 |
| 8 | 19384289 |
| 9 | 26921089 |
| 10 | 31146661 |
| 11 | 34901461 |
| 12 | 41471521 |
| 13 | 53711113 |
| 14 | 76595761 |
| 15 | 140241361 |
| 16 | 144218341 |
| 17 | 150846961 |
| 18 | 151530401 |
| 19 | 169057801 |
| 20 | 171454321 |
| 21 | 171679561 |
| 22 | 172430401 |
| 23 | 228842209 |
| 24 | 277241401 |
| 25 | 280761481 |