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 | 61 |
| 2 | 241 |
| 3 | 541 |
| 4 | 961 |
| 5 | 1501 |
| 6 | 2161 |
| 7 | 2941 |
| 8 | 3841 |
| 9 | 4861 |
| 10 | 6001 |
| 11 | 7261 |
| 12 | 8641 |
| 13 | 10141 |
| 14 | 11761 |
| 15 | 13501 |
| 16 | 15361 |
| 17 | 17341 |
| 18 | 19441 |
| 19 | 21661 |
| 20 | 24001 |
| 21 | 26461 |
| 22 | 29041 |
| 23 | 31741 |
| 24 | 34561 |
| 25 | 37501 |
| 26 | 40561 |
| 27 | 43741 |
| 28 | 47041 |
| 29 | 50461 |
| 30 | 54001 |
| 31 | 57661 |
| 32 | 61441 |
| 33 | 65341 |
| 34 | 69361 |
| 35 | 73501 |
| 36 | 77761 |
| 37 | 82141 |
| 38 | 86641 |
| 39 | 91261 |
| 40 | 96001 |