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 | 5 |
| 2 | 13 |
| 3 | 229 |
| 4 | 1093 |
| 5 | 2029 |
| 6 | 3253 |
| 7 | 13693 |
| 8 | 21613 |
| 9 | 59053 |
| 10 | 65029 |
| 11 | 91813 |
| 12 | 140629 |
| 13 | 178933 |
| 14 | 199813 |
| 15 | 205213 |
| 16 | 227533 |
| 17 | 328333 |
| 18 | 567013 |
| 19 | 700573 |
| 20 | 804613 |
| 21 | 815413 |
| 22 | 1071229 |
| 23 | 2241013 |
| 24 | 3629029 |
| 25 | 4223029 |
| 26 | 4347229 |
| 27 | 4809253 |
| 28 | 5212093 |
| 29 | 5919493 |
| 30 | 6185173 |