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 | 0 |
| 2 | 6 |
| 3 | 94 |
| 4 | 536 |
| 5 | 1940 |
| 6 | 5368 |
| 7 | 12458 |
| 8 | 25544 |
| 9 | 47776 |
| 10 | 83240 |
| 11 | 137078 |
| 12 | 215608 |
| 13 | 326444 |
| 14 | 478616 |
| 15 | 682690 |
| 16 | 950888 |
| 17 | 1297208 |
| 18 | 1737544 |
| 19 | 2289806 |
| 20 | 2974040 |
| 21 | 3812548 |
| 22 | 4830008 |
| 23 | 6053594 |
| 24 | 7513096 |
| 25 | 9241040 |
| 26 | 11272808 |
| 27 | 13646758 |
| 28 | 16404344 |
| 29 | 19590236 |
| 30 | 23252440 |