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 | 5 |
| 2 | 193 |
| 3 | 499 |
| 4 | 557 |
| 5 | 1249 |
| 6 | 1693 |
| 7 | 4999 |
| 8 | 7057 |
| 9 | 31249 |
| 10 | 49999 |
| 11 | 52057 |
| 12 | 54193 |
| 13 | 56249 |
| 14 | 79193 |
| 15 | 281249 |
| 16 | 829193 |
| 17 | 952057 |
| 18 | 4531249 |
| 19 | 4999999 |
| 20 | 8281249 |
| 21 | 8704193 |
| 22 | 17077057 |
| 23 | 39954193 |
| 24 | 54577057 |
| 25 | 63281249 |
| 26 | 64954193 |
| 27 | 904577057 |
| 28 | 2154577057 |
| 29 | 3092077057 |
| 30 | 3958704193 |