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 | 83 |
| 2 | 311 |
| 3 | 55813 |
| 4 | 437357 |
| 5 | 1219789 |
| 6 | 8472193 |
| 7 | 9496853 |
| 8 | 6484103 |
| 9 | 2166953 |
| 10 | 37296143 |
| 11 | 12671599 |
| 12 | 13432571 |
| 13 | 14968909 |
| 14 | 145616561 |
| 15 | 732092831 |
| 16 | 220872569 |
| 17 | 1381099933 |
| 18 | 93482633 |
| 19 | 4142423 |
| 20 | 87030017 |
| 21 | 3193060007 |
| 22 | 736535783 |
| 23 | 6390999871 |
| 24 | 280886077 |
| 25 | 464341303 |
| 26 | 268231657 |
| 27 | 686836817 |
| 28 | 9000046663 |