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 | 128 |
| 3 | 1094 |
| 4 | 8256 |
| 5 | 19532 |
| 6 | 140032 |
| 7 | 137258 |
| 8 | 528448 |
| 9 | 797891 |
| 10 | 2500096 |
| 11 | 1948718 |
| 12 | 9032064 |
| 13 | 5229044 |
| 14 | 17569024 |
| 15 | 21368008 |
| 16 | 33820736 |
| 17 | 25646168 |
| 18 | 102130048 |
| 19 | 49659542 |
| 20 | 161256192 |
| 21 | 150160252 |
| 22 | 249435904 |
| 23 | 154764794 |
| 24 | 578122112 |
| 25 | 305191407 |
| 26 | 669317632 |
| 27 | 581662904 |
| 28 | 1133202048 |