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 | 73 |
| 4 | 421 |
| 5 | 541 |
| 6 | 613 |
| 7 | 661 |
| 8 | 673 |
| 9 | 1201 |
| 10 | 1453 |
| 11 | 2341 |
| 12 | 2473 |
| 13 | 2593 |
| 14 | 3061 |
| 15 | 3313 |
| 16 | 4441 |
| 17 | 4561 |
| 18 | 5113 |
| 19 | 6073 |
| 20 | 6121 |
| 21 | 6133 |
| 22 | 8521 |
| 23 | 8893 |
| 24 | 9601 |
| 25 | 9901 |
| 26 | 10453 |
| 27 | 11161 |
| 28 | 11701 |
| 29 | 12301 |
| 30 | 12721 |
| 31 | 13381 |
| 32 | 13681 |
| 33 | 13933 |
| 34 | 15241 |
| 35 | 15361 |
| 36 | 15373 |
| 37 | 15733 |
| 38 | 16033 |
| 39 | 16333 |
| 40 | 16381 |