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 | 17 |
| 3 | 183 |
| 4 | 2043 |
| 5 | 26529 |
| 6 | 398025 |
| 7 | 6765975 |
| 8 | 128556675 |
| 9 | 2699661825 |
| 10 | 62092533825 |
| 11 | 1552309291575 |
| 12 | 41912411683275 |
| 13 | 1215458905032225 |
| 14 | 37679245697871225 |
| 15 | 1243414695550433175 |
| 16 | 43519523831289457875 |
| 17 | 1610222144582102522625 |