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) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 136 |
| 3 | 1701 |
| 4 | 20672 |
| 5 | 248707 |
| 6 | 2985768 |
| 7 | 35831465 |
| 8 | 429981184 |
| 9 | 5159779623 |
| 10 | 61917363224 |
| 11 | 743008369357 |
| 12 | 8916100446528 |
| 13 | 106993205376875 |
| 14 | 1283918464546120 |
| 15 | 15407021574582993 |
| 16 | 184884258895032320 |
| 17 | 2218611106740432079 |
| 18 | 26623333280885238072 |
| 19 | 319479999370622919989 |