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) |
|---|---|
| 0 | 2 |
| 1 | 7 |
| 2 | 37 |
| 3 | 31 |
| 4 | 1297 |
| 5 | 101 |
| 6 | 97 |
| 7 | 197 |
| 8 | 98801 |
| 9 | 46441 |
| 10 | 6781 |
| 11 | 51828151 |
| 12 | 1678321 |
| 13 | 37571 |
| 14 | 5030761 |
| 15 | 1950271 |
| 16 | 4709377 |
| 17 | 12690943 |
| 18 | 55117 |
| 19 | 48713705333 |
| 20 | 68754507401 |
| 21 | 2527867231 |
| 22 | 863017 |
| 23 | 990000731 |
| 24 | 473896897 |
| 25 | 3655688315536801 |
| 26 | 6291946695217 |
| 27 | 883383463 |
| 28 | 81035189089 |