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 | 11 |
| 3 | 19 |
| 4 | 67 |
| 5 | 71 |
| 6 | 263 |
| 7 | 271 |
| 8 | 781 |
| 9 | 1273 |
| 10 | 1349 |
| 11 | 2981 |
| 12 | 4757 |
| 13 | 5041 |
| 14 | 18157 |
| 15 | 18673 |
| 16 | 19241 |
| 17 | 55451 |
| 18 | 71273 |
| 19 | 73441 |
| 20 | 95779 |
| 21 | 211651 |
| 22 | 337747 |
| 23 | 357911 |
| 24 | 1289147 |
| 25 | 1325783 |
| 26 | 1366111 |
| 27 | 3937021 |
| 28 | 5060383 |
| 29 | 5214311 |
| 30 | 6800309 |
| 31 | 15027221 |
| 32 | 19314983 |
| 33 | 19902511 |
| 34 | 23980037 |
| 35 | 25411681 |