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 | 9 |
| 2 | 25 |
| 3 | 57 |
| 4 | 89 |
| 5 | 129 |
| 6 | 177 |
| 7 | 249 |
| 8 | 313 |
| 9 | 409 |
| 10 | 489 |
| 11 | 593 |
| 12 | 705 |
| 13 | 817 |
| 14 | 945 |
| 15 | 1097 |
| 16 | 1257 |
| 17 | 1401 |
| 18 | 1561 |
| 19 | 1729 |
| 20 | 1921 |
| 21 | 2137 |
| 22 | 2313 |
| 23 | 2521 |
| 24 | 2745 |
| 25 | 2977 |
| 26 | 3233 |
| 27 | 3473 |
| 28 | 3745 |
| 29 | 4009 |
| 30 | 4265 |
| 31 | 4561 |
| 32 | 4865 |
| 33 | 5201 |
| 34 | 5489 |
| 35 | 5801 |
| 36 | 6153 |
| 37 | 6473 |
| 38 | 6889 |
| 39 | 7201 |
| 40 | 7585 |
| 41 | 7977 |
| 42 | 8329 |
| 43 | 8761 |
| 44 | 9161 |
| 45 | 9617 |
| 46 | 10017 |