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 | 81 |
| 2 | 343 |
| 3 | 7765 |
| 4 | 93765 |
| 5 | 1483419 |
| 6 | 21409033 |
| 7 | 325878175 |
| 8 | 4873250877 |
| 9 | 73450141827 |
| 10 | 1104008971493 |
| 11 | 16615223109133 |
| 12 | 249949206695547 |
| 13 | 3760847564430971 |
| 14 | 56583449950921439 |
| 15 | 851347218771176575 |
| 16 | 12809113773490102743 |