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 | 85 |
| 2 | 1583 |
| 3 | 13203 |
| 4 | 68853 |
| 5 | 264825 |
| 6 | 824083 |
| 7 | 2195399 |
| 8 | 5195081 |
| 9 | 11199037 |
| 10 | 22392919 |
| 11 | 42088091 |
| 12 | 75111165 |
| 13 | 128274849 |
| 14 | 210937851 |
| 15 | 335661583 |
| 16 | 518971409 |
| 17 | 782230181 |
| 18 | 1152631807 |
| 19 | 1664322595 |
| 20 | 2359658117 |
| 21 | 3290603337 |
| 22 | 4520283747 |