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 | 139 |
| 2 | 829 |
| 3 | 4831 |
| 4 | 15319 |
| 5 | 36709 |
| 6 | 53959 |
| 7 | 58789 |
| 8 | 65551 |
| 9 | 74521 |
| 10 | 107089 |
| 11 | 142969 |
| 12 | 198859 |
| 13 | 227011 |
| 14 | 278071 |
| 15 | 292561 |
| 16 | 727399 |
| 17 | 750721 |
| 18 | 804541 |
| 19 | 879199 |
| 20 | 957169 |
| 21 | 1181281 |
| 22 | 1325491 |
| 23 | 1364821 |
| 24 | 1519519 |
| 25 | 1700161 |
| 26 | 1835401 |
| 27 | 1881631 |
| 28 | 2111539 |
| 29 | 2231461 |
| 30 | 2396509 |
| 31 | 2778079 |
| 32 | 2926981 |
| 33 | 3067879 |