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 | 4 |
| 2 | 15 |
| 3 | 54 |
| 4 | 75 |
| 5 | 132 |
| 6 | 169 |
| 7 | 320 |
| 8 | 459 |
| 9 | 735 |
| 10 | 847 |
| 11 | 1104 |
| 12 | 1250 |
| 13 | 1764 |
| 14 | 2175 |
| 15 | 2904 |
| 16 | 3179 |
| 17 | 3780 |
| 18 | 4107 |
| 19 | 5200 |
| 20 | 6027 |
| 21 | 7425 |
| 22 | 7935 |
| 23 | 9024 |
| 24 | 9604 |
| 25 | 11492 |
| 26 | 12879 |
| 27 | 15162 |
| 28 | 15979 |
| 29 | 17700 |
| 30 | 18605 |
| 31 | 21504 |
| 32 | 23595 |
| 33 | 26979 |
| 34 | 28175 |
| 35 | 30672 |
| 36 | 31974 |
| 37 | 36100 |
| 38 | 39039 |
| 39 | 43740 |
| 40 | 45387 |
| 41 | 48804 |