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 | 25 |
| 2 | 85 |
| 3 | 181 |
| 4 | 313 |
| 5 | 481 |
| 6 | 685 |
| 7 | 925 |
| 8 | 1201 |
| 9 | 1513 |
| 10 | 1861 |
| 11 | 2245 |
| 12 | 2665 |
| 13 | 3121 |
| 14 | 3613 |
| 15 | 4141 |
| 16 | 4705 |
| 17 | 5305 |
| 18 | 5941 |
| 19 | 6613 |
| 20 | 7321 |
| 21 | 8065 |
| 22 | 8845 |
| 23 | 9661 |
| 24 | 10513 |
| 25 | 11401 |
| 26 | 12325 |
| 27 | 13285 |
| 28 | 14281 |
| 29 | 15313 |
| 30 | 16381 |
| 31 | 17485 |
| 32 | 18625 |
| 33 | 19801 |
| 34 | 21013 |
| 35 | 22261 |
| 36 | 23545 |
| 37 | 24865 |
| 38 | 26221 |
| 39 | 27613 |
| 40 | 29041 |
| 41 | 30505 |