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 | 1 |
| 2 | 41 |
| 3 | 121 |
| 4 | 241 |
| 5 | 401 |
| 6 | 601 |
| 7 | 841 |
| 8 | 1121 |
| 9 | 1441 |
| 10 | 1801 |
| 11 | 2201 |
| 12 | 2641 |
| 13 | 3121 |
| 14 | 3641 |
| 15 | 4201 |
| 16 | 4801 |
| 17 | 5441 |
| 18 | 6121 |
| 19 | 6841 |
| 20 | 7601 |
| 21 | 8401 |
| 22 | 9241 |
| 23 | 10121 |
| 24 | 11041 |
| 25 | 12001 |
| 26 | 13001 |
| 27 | 14041 |
| 28 | 15121 |
| 29 | 16241 |
| 30 | 17401 |
| 31 | 18601 |
| 32 | 19841 |
| 33 | 21121 |
| 34 | 22441 |
| 35 | 23801 |
| 36 | 25201 |
| 37 | 26641 |
| 38 | 28121 |
| 39 | 29641 |
| 40 | 31201 |
| 41 | 32801 |
| 42 | 34441 |
| 43 | 36121 |