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) |
|---|---|
| 0 | 20 |
| 1 | 111881 |
| 2 | 818606 |
| 3 | 2680067 |
| 4 | 6256136 |
| 5 | 12106685 |
| 6 | 20791586 |
| 7 | 32870711 |
| 8 | 48903932 |
| 9 | 69451121 |
| 10 | 95072150 |
| 11 | 126326891 |
| 12 | 163775216 |
| 13 | 207976997 |
| 14 | 259492106 |
| 15 | 318880415 |
| 16 | 386701796 |
| 17 | 463516121 |
| 18 | 549883262 |
| 19 | 646363091 |
| 20 | 753515480 |
| 21 | 871900301 |
| 22 | 1002077426 |
| 23 | 1144606727 |
| 24 | 1300048076 |
| 25 | 1468961345 |
| 26 | 1651906406 |