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 | 42 |
| 2 | 105 |
| 3 | 231 |
| 4 | 399 |
| 5 | 483 |
| 6 | 861 |
| 7 | 987 |
| 8 | 1113 |
| 9 | 1281 |
| 10 | 1491 |
| 11 | 1869 |
| 12 | 2121 |
| 13 | 2247 |
| 14 | 2667 |
| 15 | 2751 |
| 16 | 3129 |
| 17 | 3423 |
| 18 | 5649 |
| 19 | 5691 |
| 20 | 5817 |
| 21 | 7539 |
| 22 | 8169 |
| 23 | 8421 |
| 24 | 8589 |
| 25 | 9807 |
| 26 | 10563 |
| 27 | 10689 |
| 28 | 10983 |
| 29 | 11361 |
| 30 | 13881 |
| 31 | 14511 |
| 32 | 14889 |
| 33 | 15519 |
| 34 | 17031 |
| 35 | 17409 |
| 36 | 18627 |
| 37 | 19761 |
| 38 | 20391 |
| 39 | 21189 |