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 | 21 |
| 2 | 56 |
| 3 | 105 |
| 4 | 168 |
| 5 | 245 |
| 6 | 336 |
| 7 | 441 |
| 8 | 560 |
| 9 | 693 |
| 10 | 840 |
| 11 | 1001 |
| 12 | 1176 |
| 13 | 1365 |
| 14 | 1568 |
| 15 | 1785 |
| 16 | 2016 |
| 17 | 2261 |
| 18 | 2520 |
| 19 | 2793 |
| 20 | 3080 |
| 21 | 3381 |
| 22 | 3696 |
| 23 | 4025 |
| 24 | 4368 |
| 25 | 4725 |
| 26 | 5096 |
| 27 | 5481 |
| 28 | 5880 |
| 29 | 6293 |
| 30 | 6720 |
| 31 | 7161 |
| 32 | 7616 |
| 33 | 8085 |
| 34 | 8568 |
| 35 | 9065 |
| 36 | 9576 |
| 37 | 10101 |
| 38 | 10640 |
| 39 | 11193 |
| 40 | 11760 |
| 41 | 12341 |
| 42 | 12936 |