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 | 18 |
| 3 | 27 |
| 4 | 50 |
| 5 | 125 |
| 6 | 225 |
| 7 | 242 |
| 8 | 294 |
| 9 | 441 |
| 10 | 578 |
| 11 | 686 |
| 12 | 1029 |
| 13 | 1089 |
| 14 | 1331 |
| 15 | 1922 |
| 16 | 2401 |
| 17 | 2601 |
| 18 | 3025 |
| 19 | 3362 |
| 20 | 3675 |
| 21 | 4913 |
| 22 | 5070 |
| 23 | 5290 |
| 24 | 6962 |
| 25 | 7225 |
| 26 | 7605 |
| 27 | 8575 |
| 28 | 8649 |
| 29 | 8978 |
| 30 | 12675 |
| 31 | 13182 |
| 32 | 13225 |
| 33 | 13778 |
| 34 | 15129 |
| 35 | 15162 |
| 36 | 17787 |
| 37 | 19773 |
| 38 | 21970 |
| 39 | 22743 |
| 40 | 23762 |
| 41 | 23805 |
| 42 | 24025 |
| 43 | 24334 |
| 44 | 29791 |
| 45 | 31329 |
| 46 | 32258 |
| 47 | 32955 |
| 48 | 34969 |
| 49 | 35378 |