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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 22 |
| 4 | 14926 |
| 5 | 31048 |
| 6 | 69106 |
| 7 | 246262 |
| 8 | 5860168 |
| 9 | 307164670 |
| 10 | 881198662 |
| 11 | 1489455646 |
| 12 | 2386555630 |
| 13 | 8225563702 |
| 14 | 14311679062 |
| 15 | 111494234182 |
| 16 | 154357775302 |
| 17 | 299004519622 |
| 18 | 870455062822 |
| 19 | 970388922262 |
| 20 | 991817878342 |
| 21 | 1677028870822 |
| 22 | 1782783762502 |
| 23 | 1830446935222 |