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 | 8 |
| 1 | 129 |
| 2 | 2072 |
| 3 | 33281 |
| 4 | 534568 |
| 5 | 8586369 |
| 6 | 137916472 |
| 7 | 2215249921 |
| 8 | 35581915208 |
| 9 | 571525893249 |
| 10 | 9179996207192 |
| 11 | 147451465208321 |
| 12 | 2368403439540328 |
| 13 | 38041906497853569 |
| 14 | 611038907405197432 |
| 15 | 9814664424981012481 |
| 16 | 157645669707101397128 |
| 17 | 2532145379738603366529 |
| 18 | 40671971745524755261592 |