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 | 40144044691 |
| 2 | 58058453543 |
| 3 | 89797181359 |
| 4 | 185113489357 |
| 5 | 213022025663 |
| 6 | 222498988079 |
| 7 | 365115312521 |
| 8 | 397195264507 |
| 9 | 507086259359 |
| 10 | 537598896647 |
| 11 | 576872778883 |
| 12 | 671770400281 |
| 13 | 710587610861 |
| 14 | 719174481061 |
| 15 | 815380174991 |
| 16 | 840202011349 |
| 17 | 855194972407 |
| 18 | 869287849361 |
| 19 | 891600776149 |