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 | 19890 |
| 2 | 43890 |
| 3 | 157770 |
| 4 | 400680 |
| 5 | 436650 |
| 6 | 609780 |
| 7 | 681090 |
| 8 | 797310 |
| 9 | 924360 |
| 10 | 978180 |
| 11 | 1093200 |
| 12 | 1116570 |
| 13 | 1179150 |
| 14 | 1185930 |
| 15 | 1313700 |
| 16 | 1573110 |
| 17 | 1663350 |
| 18 | 2001510 |
| 19 | 2110290 |
| 20 | 2163570 |
| 21 | 2336310 |
| 22 | 2372370 |
| 23 | 2408280 |
| 24 | 2415630 |
| 25 | 2562690 |
| 26 | 2877840 |
| 27 | 2896740 |
| 28 | 2961900 |