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 | 13 |
| 2 | 61 |
| 3 | 1321 |
| 4 | 1621 |
| 5 | 4261 |
| 6 | 5101 |
| 7 | 6661 |
| 8 | 6781 |
| 9 | 11701 |
| 10 | 12541 |
| 11 | 21061 |
| 12 | 66361 |
| 13 | 83221 |
| 14 | 88261 |
| 15 | 107101 |
| 16 | 110881 |
| 17 | 114661 |
| 18 | 127681 |
| 19 | 130201 |
| 20 | 140761 |
| 21 | 141961 |
| 22 | 144541 |
| 23 | 148201 |
| 24 | 149521 |
| 25 | 157561 |
| 26 | 161341 |
| 27 | 163861 |
| 28 | 175081 |
| 29 | 186481 |
| 30 | 204601 |
| 31 | 230941 |
| 32 | 249541 |
| 33 | 267961 |