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 | 1 |
| 2 | 9 |
| 3 | 63 |
| 4 | 191 |
| 5 | 691 |
| 6 | 1123 |
| 7 | 3181 |
| 8 | 5229 |
| 9 | 9603 |
| 10 | 13603 |
| 11 | 26913 |
| 12 | 33825 |
| 13 | 60189 |
| 14 | 76653 |
| 15 | 103653 |
| 16 | 136421 |
| 17 | 215029 |
| 18 | 250021 |
| 19 | 373483 |
| 20 | 437483 |
| 21 | 548615 |
| 22 | 655095 |
| 23 | 922769 |
| 24 | 1033361 |
| 25 | 1345861 |
| 26 | 1556773 |
| 27 | 1911067 |
| 28 | 2174491 |
| 29 | 2857383 |
| 30 | 3073383 |
| 31 | 3967113 |
| 32 | 4491401 |
| 33 | 5210141 |
| 34 | 5839005 |
| 35 | 6868005 |
| 36 | 7427877 |
| 37 | 9251385 |