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 | 50 |
| 3 | 290 |
| 4 | 290 |
| 5 | 850 |
| 6 | 1690 |
| 7 | 1690 |
| 8 | 2210 |
| 9 | 4930 |
| 10 | 6710 |
| 11 | 9802 |
| 12 | 10660 |
| 13 | 22100 |
| 14 | 24650 |
| 15 | 22100 |
| 16 | 28730 |
| 17 | 38918 |
| 18 | 48100 |
| 19 | 48100 |
| 20 | 68900 |
| 21 | 68900 |
| 22 | 114070 |
| 23 | 128180 |
| 24 | 188500 |
| 25 | 188500 |
| 26 | 246500 |
| 27 | 226798 |
| 28 | 246500 |
| 29 | 278980 |
| 30 | 404260 |
| 31 | 399620 |
| 32 | 490100 |
| 33 | 640900 |
| 34 | 640900 |
| 35 | 817700 |
| 36 | 746980 |
| 37 | 906100 |