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 | 4 |
| 2 | 388 |
| 3 | 403 |
| 4 | 10010 |
| 5 | 11481 |
| 6 | 12215 |
| 7 | 41242 |
| 8 | 42173 |
| 9 | 44243 |
| 10 | 223261 |
| 11 | 223487 |
| 12 | 403303 |
| 13 | 2302031 |
| 14 | 3288877 |
| 15 | 3490447 |
| 16 | 32605627 |
| 17 | 40077553 |
| 18 | 40162802 |
| 19 | 42311323 |
| 20 | 44044043 |
| 21 | 117426509 |
| 22 | 222613051 |
| 23 | 230777581 |
| 24 | 232075811 |
| 25 | 287772226 |
| 26 | 307222207 |
| 27 | 327067459 |