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 | 0 |
| 2 | 9 |
| 3 | 41 |
| 4 | 81 |
| 5 | 146 |
| 6 | 194 |
| 7 | 306 |
| 8 | 369 |
| 9 | 425 |
| 10 | 594 |
| 11 | 689 |
| 12 | 866 |
| 13 | 1109 |
| 14 | 1154 |
| 15 | 1154 |
| 16 | 1361 |
| 17 | 1634 |
| 18 | 1781 |
| 19 | 1889 |
| 20 | 2141 |
| 21 | 2609 |
| 22 | 2609 |
| 23 | 3366 |
| 24 | 3366 |
| 25 | 3449 |
| 26 | 3449 |
| 27 | 3506 |
| 28 | 4241 |
| 29 | 4289 |
| 30 | 4826 |
| 31 | 5066 |
| 32 | 5381 |
| 33 | 5561 |
| 34 | 5561 |
| 35 | 6254 |
| 36 | 7229 |
| 37 | 7829 |
| 38 | 8069 |
| 39 | 8069 |
| 40 | 8126 |
| 41 | 8609 |
| 42 | 8774 |
| 43 | 8774 |