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 | 0 |
| 1 | 65535 |
| 2 | 16711935 |
| 3 | 16776960 |
| 4 | 252645135 |
| 5 | 252702960 |
| 6 | 267390960 |
| 7 | 267448335 |
| 8 | 858993459 |
| 9 | 859032780 |
| 10 | 869020620 |
| 11 | 869059635 |
| 12 | 1010580540 |
| 13 | 1010615235 |
| 14 | 1019428035 |
| 15 | 1019462460 |
| 16 | 1431655765 |
| 17 | 1431677610 |
| 18 | 1437226410 |
| 19 | 1437248085 |