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 | 45 |
| 3 | 133 |
| 4 | 265 |
| 5 | 441 |
| 6 | 661 |
| 7 | 925 |
| 8 | 1233 |
| 9 | 1585 |
| 10 | 1981 |
| 11 | 2421 |
| 12 | 2905 |
| 13 | 3433 |
| 14 | 4005 |
| 15 | 4621 |
| 16 | 5281 |
| 17 | 5985 |
| 18 | 6733 |
| 19 | 7525 |
| 20 | 8361 |
| 21 | 9241 |
| 22 | 10165 |
| 23 | 11133 |
| 24 | 12145 |
| 25 | 13201 |
| 26 | 14301 |
| 27 | 15445 |
| 28 | 16633 |
| 29 | 17865 |
| 30 | 19141 |
| 31 | 20461 |
| 32 | 21825 |
| 33 | 23233 |
| 34 | 24685 |
| 35 | 26181 |
| 36 | 27721 |
| 37 | 29305 |
| 38 | 30933 |
| 39 | 32605 |
| 40 | 34321 |
| 41 | 36081 |
| 42 | 37885 |
| 43 | 39733 |