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 | 5 |
| 2 | 7 |
| 3 | 619 |
| 4 | 6581 |
| 5 | 13933 |
| 6 | 15823 |
| 7 | 22307 |
| 8 | 259033 |
| 9 | 678659 |
| 10 | 745757 |
| 11 | 576791 |
| 12 | 15014557 |
| 13 | 35630467 |
| 14 | 31515413 |
| 15 | 264426203 |
| 16 | 356604959 |
| 17 | 364058659 |
| 18 | 2529682091 |
| 19 | 6868844179 |
| 20 | 1457908691 |
| 21 | 12799238129 |
| 22 | 23294528897 |
| 23 | 72106293983 |
| 24 | 82160403553 |
| 25 | 230966323927 |
| 26 | 19187736221 |