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 | 14763 |
| 2 | 628805 |
| 3 | 5501167 |
| 4 | 24943689 |
| 5 | 79549811 |
| 6 | 203823373 |
| 7 | 449807415 |
| 8 | 890712977 |
| 9 | 1624547899 |
| 10 | 2777745621 |
| 11 | 4508793983 |
| 12 | 7011864025 |
| 13 | 10520438787 |
| 14 | 15310942109 |
| 15 | 21706367431 |
| 16 | 30079906593 |
| 17 | 40858578635 |
| 18 | 54526858597 |
| 19 | 71630306319 |
| 20 | 92779195241 |
| 21 | 118652141203 |