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) |
|---|---|
| 0 | 1 |
| 1 | 42 |
| 2 | 210 |
| 3 | 350 |
| 4 | 882 |
| 5 | 1050 |
| 6 | 1750 |
| 7 | 2100 |
| 8 | 3570 |
| 9 | 3066 |
| 10 | 5250 |
| 11 | 5124 |
| 12 | 7350 |
| 13 | 7350 |
| 14 | 10500 |
| 15 | 8064 |
| 16 | 14322 |
| 17 | 12600 |
| 18 | 15330 |
| 19 | 15750 |
| 20 | 22050 |
| 21 | 16814 |
| 22 | 25620 |
| 23 | 22260 |
| 24 | 29750 |
| 25 | 25242 |
| 26 | 36750 |
| 27 | 28700 |
| 28 | 44100 |
| 29 | 35364 |
| 30 | 40320 |
| 31 | 42000 |
| 32 | 57330 |
| 33 | 42700 |
| 34 | 63000 |
| 35 | 50442 |
| 36 | 64386 |
| 37 | 57540 |
| 38 | 78750 |
| 39 | 56448 |