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 | 0 |
| 1 | 11 |
| 2 | 23 |
| 3 | 58 |
| 4 | 132 |
| 5 | 134 |
| 6 | 558 |
| 7 | 914 |
| 8 | 4233 |
| 9 | 377610 |
| 10 | 987159 |
| 11 | 7258441 |
| 12 | 81676510 |
| 13 | 94617711 |
| 14 | 286574636 |
| 15 | 875025121 |
| 16 | 3931964183 |
| 17 | 17811514229 |
| 18 | 83204013462 |
| 19 | 692178309352 |
| 20 | 4578570288792 |
| 21 | 27465149303522 |
| 22 | 41578173908816 |