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 | 18 |
| 2 | 72 |
| 3 | 90 |
| 4 | 162 |
| 5 | 180 |
| 6 | 252 |
| 7 | 288 |
| 8 | 360 |
| 9 | 450 |
| 10 | 540 |
| 11 | 630 |
| 12 | 648 |
| 13 | 720 |
| 14 | 810 |
| 15 | 882 |
| 16 | 990 |
| 17 | 1008 |
| 18 | 1152 |
| 19 | 1440 |
| 20 | 1458 |
| 21 | 1512 |
| 22 | 1620 |
| 23 | 1638 |
| 24 | 1800 |
| 25 | 1890 |
| 26 | 2160 |
| 27 | 2178 |
| 28 | 2250 |
| 29 | 2268 |
| 30 | 2520 |
| 31 | 2592 |
| 32 | 2772 |
| 33 | 2880 |
| 34 | 2970 |
| 35 | 3042 |
| 36 | 3240 |
| 37 | 3528 |
| 38 | 3672 |
| 39 | 3960 |
| 40 | 4032 |
| 41 | 4050 |
| 42 | 4158 |
| 43 | 4410 |
| 44 | 4500 |
| 45 | 4608 |
| 46 | 4680 |
| 47 | 4860 |