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 | 210 |
| 2 | 420 |
| 3 | 630 |
| 4 | 840 |
| 5 | 1050 |
| 6 | 1260 |
| 7 | 1470 |
| 8 | 1680 |
| 9 | 1890 |
| 10 | 2100 |
| 11 | 2520 |
| 12 | 2940 |
| 13 | 3150 |
| 14 | 3360 |
| 15 | 3780 |
| 16 | 4200 |
| 17 | 4410 |
| 18 | 5040 |
| 19 | 5250 |
| 20 | 5670 |
| 21 | 5880 |
| 22 | 6300 |
| 23 | 6720 |
| 24 | 7350 |
| 25 | 7560 |
| 26 | 8400 |
| 27 | 8820 |
| 28 | 9450 |
| 29 | 10080 |
| 30 | 10290 |
| 31 | 10500 |
| 32 | 11340 |
| 33 | 11760 |
| 34 | 12600 |
| 35 | 13230 |
| 36 | 13440 |
| 37 | 14700 |
| 38 | 15120 |
| 39 | 15750 |
| 40 | 16800 |