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 | 21 |
| 2 | 65 |
| 3 | 133 |
| 4 | 225 |
| 5 | 341 |
| 6 | 481 |
| 7 | 645 |
| 8 | 833 |
| 9 | 1045 |
| 10 | 1281 |
| 11 | 1541 |
| 12 | 1825 |
| 13 | 2133 |
| 14 | 2465 |
| 15 | 2821 |
| 16 | 3201 |
| 17 | 3605 |
| 18 | 4033 |
| 19 | 4485 |
| 20 | 4961 |
| 21 | 5461 |
| 22 | 5985 |
| 23 | 6533 |
| 24 | 7105 |
| 25 | 7701 |
| 26 | 8321 |
| 27 | 8965 |
| 28 | 9633 |
| 29 | 10325 |
| 30 | 11041 |
| 31 | 11781 |
| 32 | 12545 |
| 33 | 13333 |
| 34 | 14145 |
| 35 | 14981 |
| 36 | 15841 |
| 37 | 16725 |
| 38 | 17633 |
| 39 | 18565 |
| 40 | 19521 |
| 41 | 20501 |
| 42 | 21505 |