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 | 76 |
| 2 | 1460 |
| 3 | 13604 |
| 4 | 81555 |
| 5 | 363606 |
| 6 | 1310974 |
| 7 | 4029310 |
| 8 | 10936124 |
| 9 | 26868719 |
| 10 | 60843972 |
| 11 | 128724276 |
| 12 | 257103166 |
| 13 | 488789593 |
| 14 | 890341484 |
| 15 | 1562177132 |
| 16 | 2651877099 |
| 17 | 4371379686 |
| 18 | 7018869628 |
| 19 | 11006262508 |
| 20 | 16893296453 |
| 21 | 25429357976 |
| 22 | 37604290362 |