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 | 0 |
| 2 | 20 |
| 3 | 52 |
| 4 | 144 |
| 5 | 208 |
| 6 | 436 |
| 7 | 532 |
| 8 | 816 |
| 9 | 1072 |
| 10 | 1508 |
| 11 | 1668 |
| 12 | 2400 |
| 13 | 2592 |
| 14 | 3220 |
| 15 | 3940 |
| 16 | 4768 |
| 17 | 5024 |
| 18 | 6212 |
| 19 | 6500 |
| 20 | 7856 |
| 21 | 8944 |
| 22 | 9988 |
| 23 | 10340 |
| 24 | 12384 |
| 25 | 13280 |
| 26 | 14516 |
| 27 | 15796 |
| 28 | 17824 |
| 29 | 18272 |
| 30 | 21156 |
| 31 | 21636 |
| 32 | 23712 |
| 33 | 25472 |
| 34 | 27124 |
| 35 | 29124 |
| 36 | 32800 |
| 37 | 33376 |
| 38 | 35220 |
| 39 | 37300 |
| 40 | 41136 |
| 41 | 41776 |