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 | 1 |
| 1 | 8 |
| 2 | 71 |
| 3 | 638 |
| 4 | 5741 |
| 5 | 51668 |
| 6 | 465011 |
| 7 | 4185098 |
| 8 | 37665881 |
| 9 | 338992928 |
| 10 | 3050936351 |
| 11 | 27458427158 |
| 12 | 247125844421 |
| 13 | 2224132599788 |
| 14 | 20017193398091 |
| 15 | 180154740582818 |
| 16 | 1621392665245361 |
| 17 | 14592533987208248 |
| 18 | 131332805884874231 |
| 19 | 1181995252963868078 |
| 20 | 10637957276674812701 |
| 21 | 95741615490073314308 |
| 22 | 861674539410659828771 |