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 | 1 |
| 2 | 3 |
| 3 | 15 |
| 4 | 194 |
| 5 | 255 |
| 6 | 2834 |
| 7 | 3255 |
| 8 | 3705 |
| 9 | 5186 |
| 10 | 5187 |
| 11 | 11715 |
| 12 | 22935 |
| 13 | 25545 |
| 14 | 49215 |
| 15 | 49335 |
| 16 | 65535 |
| 17 | 214334 |
| 18 | 256274 |
| 19 | 388245 |
| 20 | 525986 |
| 21 | 568815 |
| 22 | 589407 |
| 23 | 840255 |
| 24 | 936494 |
| 25 | 1259642 |
| 26 | 1574727 |
| 27 | 1659585 |
| 28 | 1759874 |
| 29 | 1788254 |
| 30 | 2123583 |
| 31 | 2200694 |
| 32 | 2521694 |
| 33 | 2619705 |
| 34 | 3240614 |
| 35 | 3289934 |