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 | 4181 |
| 2 | 10877 |
| 3 | 75077 |
| 4 | 162133 |
| 5 | 330929 |
| 6 | 1256293 |
| 7 | 1346269 |
| 8 | 2662277 |
| 9 | 3636121 |
| 10 | 4226777 |
| 11 | 9401893 |
| 12 | 13455077 |
| 13 | 14787181 |
| 14 | 16485493 |
| 15 | 21692189 |
| 16 | 24157817 |
| 17 | 24493061 |
| 18 | 25532501 |
| 19 | 29604893 |
| 20 | 31432381 |
| 21 | 39247393 |
| 22 | 73780877 |
| 23 | 75245777 |
| 24 | 77337941 |
| 25 | 120485381 |
| 26 | 124477513 |
| 27 | 127835341 |
| 28 | 132162581 |
| 29 | 143221993 |
| 30 | 143548501 |