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 | 0 |
| 1 | 1 |
| 2 | 9 |
| 3 | 19 |
| 4 | 36 |
| 5 | 55 |
| 6 | 81 |
| 7 | 109 |
| 8 | 144 |
| 9 | 181 |
| 10 | 225 |
| 11 | 271 |
| 12 | 324 |
| 13 | 379 |
| 14 | 441 |
| 15 | 505 |
| 16 | 576 |
| 17 | 649 |
| 18 | 729 |
| 19 | 811 |
| 20 | 900 |
| 21 | 991 |
| 22 | 1089 |
| 23 | 1189 |
| 24 | 1296 |
| 25 | 1405 |
| 26 | 1521 |
| 27 | 1639 |
| 28 | 1764 |
| 29 | 1891 |
| 30 | 2025 |
| 31 | 2161 |
| 32 | 2304 |
| 33 | 2449 |
| 34 | 2601 |
| 35 | 2755 |
| 36 | 2916 |
| 37 | 3079 |
| 38 | 3249 |
| 39 | 3421 |
| 40 | 3600 |
| 41 | 3781 |
| 42 | 3969 |
| 43 | 4159 |
| 44 | 4356 |
| 45 | 4555 |
| 46 | 4761 |
| 47 | 4969 |
| 48 | 5184 |
| 49 | 5401 |
| 50 | 5625 |