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 | 1 |
| 1 | 9 |
| 2 | 81 |
| 3 | 137 |
| 4 | 321 |
| 5 | 609 |
| 6 | 1081 |
| 7 | 1561 |
| 8 | 2137 |
| 9 | 3193 |
| 10 | 4393 |
| 11 | 4889 |
| 12 | 6617 |
| 13 | 8425 |
| 14 | 9529 |
| 15 | 11905 |
| 16 | 14169 |
| 17 | 17097 |
| 18 | 18953 |
| 19 | 21953 |
| 20 | 25105 |
| 21 | 29177 |
| 22 | 32681 |
| 23 | 35937 |
| 24 | 41105 |
| 25 | 46321 |
| 26 | 50529 |
| 27 | 55217 |
| 28 | 62177 |
| 29 | 67665 |
| 30 | 74849 |
| 31 | 80817 |
| 32 | 87185 |
| 33 | 96449 |
| 34 | 104945 |
| 35 | 112609 |
| 36 | 120881 |
| 37 | 130137 |