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 | 28 |
| 2 | 418 |
| 3 | 2485 |
| 4 | 9605 |
| 5 | 28700 |
| 6 | 72128 |
| 7 | 159978 |
| 8 | 322770 |
| 9 | 604560 |
| 10 | 1066450 |
| 11 | 1790503 |
| 12 | 2884063 |
| 13 | 4484480 |
| 14 | 6764240 |
| 15 | 9936500 |
| 16 | 14261028 |
| 17 | 20050548 |
| 18 | 27677490 |
| 19 | 37581145 |
| 20 | 50275225 |
| 21 | 66355828 |
| 22 | 86509808 |
| 23 | 111523550 |
| 24 | 142292150 |
| 25 | 179829000 |
| 26 | 225275778 |