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 | 6 |
| 2 | 15 |
| 3 | 30 |
| 4 | 49 |
| 5 | 73 |
| 6 | 102 |
| 7 | 135 |
| 8 | 174 |
| 9 | 217 |
| 10 | 265 |
| 11 | 318 |
| 12 | 375 |
| 13 | 438 |
| 14 | 505 |
| 15 | 577 |
| 16 | 654 |
| 17 | 735 |
| 18 | 822 |
| 19 | 913 |
| 20 | 1009 |
| 21 | 1110 |
| 22 | 1215 |
| 23 | 1326 |
| 24 | 1441 |
| 25 | 1561 |
| 26 | 1686 |
| 27 | 1815 |
| 28 | 1950 |
| 29 | 2089 |
| 30 | 2233 |
| 31 | 2382 |
| 32 | 2535 |
| 33 | 2694 |
| 34 | 2857 |
| 35 | 3025 |
| 36 | 3198 |
| 37 | 3375 |
| 38 | 3558 |
| 39 | 3745 |
| 40 | 3937 |
| 41 | 4134 |