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 | 4 |
| 2 | 1194649 |
| 3 | 121 |
| 4 | 1194649 |
| 5 | 4 |
| 6 | 4377277921 |
| 7 | 25 |
| 8 | 9 |
| 9 | 4 |
| 10 | 9 |
| 11 | 5041 |
| 12 | 7252249 |
| 13 | 4 |
| 14 | 841 |
| 15 | 848615161 |
| 16 | 1194649 |
| 17 | 4 |
| 18 | 25 |
| 19 | 9 |
| 20 | 78961 |
| 21 | 4 |
| 22 | 169 |
| 23 | 169 |
| 24 | 25 |
| 25 | 4 |
| 26 | 9 |
| 27 | 121 |
| 28 | 9 |
| 29 | 4 |
| 30 | 49 |
| 31 | 49 |
| 32 | 25 |
| 33 | 4 |
| 34 | 2129445719544546771481 |
| 35 | 9 |
| 36 | 4377277921 |
| 37 | 4 |
| 38 | 289 |
| 39 | 64625521 |
| 40 | 121 |
| 41 | 4 |
| 42 | 529 |
| 43 | 25 |
| 44 | 9 |
| 45 | 4 |
| 46 | 9 |