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 | 69 |
| 3 | 1162 |
| 4 | 27208 |
| 5 | 775547 |
| 6 | 18444470 |
| 7 | 444447937 |
| 8 | 10896495280 |
| 9 | 265837272259 |
| 10 | 6495847859424 |
| 11 | 158822121967384 |
| 12 | 3880909066698091 |
| 13 | 94831337129003187 |
| 14 | 2317336322758510242 |
| 15 | 56626572178295328836 |
| 16 | 1383738694001835856870 |