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 | 128 |
| 2 | 754 |
| 3 | 22228 |
| 4 | 424332 |
| 5 | 9519284 |
| 6 | 214514380 |
| 7 | 4803404048 |
| 8 | 109134107828 |
| 9 | 2464428175794 |
| 10 | 55852094761914 |
| 11 | 1264209426949652 |
| 12 | 28632655998634008 |
| 13 | 648354729148697522 |
| 14 | 14682760579143673998 |
| 15 | 332496265279252340092 |