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 | 7 |
| 2 | 25 |
| 3 | 73 |
| 4 | 151 |
| 5 | 277 |
| 6 | 459 |
| 7 | 699 |
| 8 | 1029 |
| 9 | 1419 |
| 10 | 1941 |
| 11 | 2517 |
| 12 | 3275 |
| 13 | 4073 |
| 14 | 5111 |
| 15 | 6167 |
| 16 | 7529 |
| 17 | 8879 |
| 18 | 10609 |
| 19 | 12289 |
| 20 | 14431 |
| 21 | 16477 |
| 22 | 19075 |
| 23 | 21523 |
| 24 | 24621 |
| 25 | 27507 |
| 26 | 31149 |
| 27 | 34509 |
| 28 | 38739 |
| 29 | 42609 |
| 30 | 47471 |
| 31 | 51887 |
| 32 | 57425 |
| 33 | 62423 |
| 34 | 68681 |
| 35 | 74297 |
| 36 | 81319 |
| 37 | 87589 |
| 38 | 95419 |
| 39 | 102379 |
| 40 | 111061 |