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 | 510 |
| 2 | 540 |
| 3 | 810 |
| 4 | 2100 |
| 5 | 4200 |
| 6 | 5100 |
| 7 | 5200 |
| 8 | 5400 |
| 9 | 5610 |
| 10 | 5700 |
| 11 | 5940 |
| 12 | 6300 |
| 13 | 8100 |
| 14 | 8400 |
| 15 | 8712 |
| 16 | 8910 |
| 17 | 9801 |
| 18 | 21000 |
| 19 | 23100 |
| 20 | 27000 |
| 21 | 42000 |
| 22 | 46200 |
| 23 | 51000 |
| 24 | 51510 |
| 25 | 52000 |
| 26 | 52200 |
| 27 | 52800 |
| 28 | 54000 |
| 29 | 54540 |
| 30 | 56100 |
| 31 | 56610 |
| 32 | 57000 |
| 33 | 57200 |
| 34 | 59400 |
| 35 | 59940 |
| 36 | 63000 |
| 37 | 65340 |
| 38 | 69300 |
| 39 | 81000 |
| 40 | 81810 |
| 41 | 84000 |
| 42 | 87120 |