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 | 5 |
| 1 | 45 |
| 2 | 485 |
| 3 | 5325 |
| 4 | 58565 |
| 5 | 644205 |
| 6 | 7086245 |
| 7 | 77948685 |
| 8 | 857435525 |
| 9 | 9431790765 |
| 10 | 103749698405 |
| 11 | 1141246682445 |
| 12 | 12553713506885 |
| 13 | 138090848575725 |
| 14 | 1518999334332965 |
| 15 | 16708992677662605 |
| 16 | 183798919454288645 |
| 17 | 2021788113997175085 |