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 | 2 |
| 2 | 3 |
| 3 | 151 |
| 4 | 181 |
| 5 | 13 |
| 6 | 811 |
| 7 | 23671 |
| 8 | 92221 |
| 9 | 45417481 |
| 10 | 5078503 |
| 11 | 4861 |
| 12 | 20379346831 |
| 13 | 12180447943 |
| 14 | 31 |
| 15 | 10347699089473 |