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 | 420 |
| 2 | 2730 |
| 3 | 5940 |
| 4 | 12540 |
| 5 | 24024 |
| 6 | 38610 |
| 7 | 48360 |
| 8 | 66528 |
| 9 | 77490 |
| 10 | 81510 |
| 11 | 133920 |
| 12 | 140448 |
| 13 | 141372 |
| 14 | 156420 |
| 15 | 163590 |
| 16 | 282720 |
| 17 | 284580 |
| 18 | 298452 |
| 19 | 348348 |
| 20 | 498420 |
| 21 | 600780 |
| 22 | 681912 |
| 23 | 701220 |
| 24 | 771420 |
| 25 | 792480 |
| 26 | 901530 |
| 27 | 918918 |
| 28 | 1016730 |
| 29 | 1052220 |
| 30 | 1150968 |
| 31 | 1372680 |
| 32 | 1439592 |
| 33 | 1654620 |