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 | 1 |
| 2 | 11 |
| 3 | 131 |
| 4 | 1761 |
| 5 | 11525101 |
| 6 | 1319065151 |
| 7 | 163301350140211 |
| 8 | 112796617011050266281 |
| 9 | 12553025777069512646462361 |
| 10 | 151193303410542525228275880750451 |