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 | 6 |
| 2 | 7 |
| 3 | 13 |
| 4 | 85 |
| 5 | 2223 |
| 6 | 13423 |
| 7 | 15646 |
| 8 | 29069 |
| 9 | 190060 |
| 10 | 4970629 |
| 11 | 30013834 |
| 12 | 34984463 |
| 13 | 64998297 |
| 14 | 424974245 |
| 15 | 11114328667 |
| 16 | 67110946247 |
| 17 | 78225274914 |
| 18 | 145336221161 |
| 19 | 950242601880 |
| 20 | 24851643870041 |
| 21 | 150060105822126 |
| 22 | 174911749692167 |
| 23 | 324971855514293 |
| 24 | 2124742882777925 |