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 | 0 |
| 2 | 34 |
| 3 | 486 |
| 4 | 4667 |
| 5 | 58160 |
| 6 | 709333 |
| 7 | 8650205 |
| 8 | 105436196 |
| 9 | 1286046720 |
| 10 | 15685227253 |
| 11 | 191303245493 |
| 12 | 2333214940038 |
| 13 | 28456911783357 |
| 14 | 347072876019793 |
| 15 | 4233051764860040 |
| 16 | 51628141257110184 |
| 17 | 629679277168773956 |