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 | 2 |
| 1 | 20 |
| 2 | 92 |
| 3 | 292 |
| 4 | 742 |
| 5 | 1624 |
| 6 | 3192 |
| 7 | 5784 |
| 8 | 9834 |
| 9 | 15884 |
| 10 | 24596 |
| 11 | 36764 |
| 12 | 53326 |
| 13 | 75376 |
| 14 | 104176 |
| 15 | 141168 |
| 16 | 187986 |
| 17 | 246468 |
| 18 | 318668 |
| 19 | 406868 |
| 20 | 513590 |
| 21 | 641608 |
| 22 | 793960 |
| 23 | 973960 |
| 24 | 1185210 |
| 25 | 1431612 |
| 26 | 1717380 |
| 27 | 2047052 |
| 28 | 2425502 |
| 29 | 2857952 |
| 30 | 3349984 |
| 31 | 3907552 |