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 | 65 |
| 2 | 217 |
| 3 | 10649 |
| 4 | 195113 |
| 5 | 1191017 |
| 6 | 45882713 |
| 7 | 55742969 |
| 8 | 946966169 |
| 9 | 2106997769 |
| 10 | 2289529433 |
| 11 | 2548895897 |
| 12 | 10735357817 |
| 13 | 26946035993 |
| 14 | 54958685609 |
| 15 | 77199941513 |
| 16 | 131561576057 |
| 17 | 132495001193 |
| 18 | 440016501017 |
| 19 | 456888832409 |
| 20 | 623273556089 |
| 21 | 848202406697 |
| 22 | 966188398457 |