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 | 727 |
| 2 | 10301 |
| 3 | 14341 |
| 4 | 16361 |
| 5 | 18181 |
| 6 | 30703 |
| 7 | 1003001 |
| 8 | 1145411 |
| 9 | 1163611 |
| 10 | 1201021 |
| 11 | 1363631 |
| 12 | 1452541 |
| 13 | 3001003 |
| 14 | 3425243 |
| 15 | 3503053 |
| 16 | 100030001 |
| 17 | 102343201 |
| 18 | 103212301 |
| 19 | 105272501 |
| 20 | 105343501 |
| 21 | 107070701 |
| 22 | 107121701 |
| 23 | 112030211 |
| 24 | 124525421 |
| 25 | 125010521 |