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 | 4 |
| 2 | 16 |
| 3 | 36 |
| 4 | 81 |
| 5 | 169 |
| 6 | 324 |
| 7 | 625 |
| 8 | 1156 |
| 9 | 2116 |
| 10 | 3844 |
| 11 | 6889 |
| 12 | 12321 |
| 13 | 21904 |
| 14 | 38809 |
| 15 | 68644 |
| 16 | 121104 |
| 17 | 213444 |
| 18 | 375769 |
| 19 | 660969 |
| 20 | 1162084 |
| 21 | 2042041 |
| 22 | 3587236 |
| 23 | 6300100 |
| 24 | 11062276 |
| 25 | 19421649 |
| 26 | 34093921 |
| 27 | 59845696 |
| 28 | 105042001 |
| 29 | 184362084 |
| 30 | 323568144 |
| 31 | 567868900 |