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 | 1026 |
| 2 | 10098 |
| 3 | 10260 |
| 4 | 41800 |
| 5 | 45696 |
| 6 | 100980 |
| 7 | 241824 |
| 8 | 685440 |
| 9 | 4938136 |
| 10 | 13959680 |
| 11 | 14958944 |
| 12 | 25581600 |
| 13 | 28158165 |
| 14 | 32440716 |
| 15 | 36072320 |
| 16 | 55204500 |
| 17 | 74062944 |
| 18 | 81128632 |
| 19 | 149589440 |
| 20 | 178327008 |
| 21 | 192793770 |
| 22 | 209524210 |
| 23 | 283604220 |
| 24 | 319848642 |
| 25 | 498215416 |
| 26 | 581112000 |
| 27 | 740629440 |
| 28 | 1236402232 |