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 | 2 |
| 2 | 7 |
| 3 | 32 |
| 4 | 157 |
| 5 | 782 |
| 6 | 3907 |
| 7 | 19532 |
| 8 | 97657 |
| 9 | 488282 |
| 10 | 2441407 |
| 11 | 12207032 |
| 12 | 61035157 |
| 13 | 305175782 |
| 14 | 1525878907 |
| 15 | 7629394532 |
| 16 | 38146972657 |
| 17 | 190734863282 |
| 18 | 953674316407 |
| 19 | 4768371582032 |
| 20 | 23841857910157 |
| 21 | 119209289550782 |
| 22 | 596046447753907 |