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 | 19 |
| 2 | 37 |
| 3 | 73 |
| 4 | 919 |
| 5 | 937 |
| 6 | 991 |
| 7 | 1873 |
| 8 | 2791 |
| 9 | 3637 |
| 10 | 3673 |
| 11 | 3691 |
| 12 | 4591 |
| 13 | 6373 |
| 14 | 8191 |
| 15 | 91837 |
| 16 | 91873 |
| 17 | 92737 |
| 18 | 92791 |
| 19 | 93637 |
| 20 | 94573 |
| 21 | 181837 |
| 22 | 181873 |
| 23 | 181891 |
| 24 | 182773 |
| 25 | 183637 |
| 26 | 183691 |
| 27 | 185491 |
| 28 | 186391 |
| 29 | 187273 |
| 30 | 272737 |
| 31 | 274591 |
| 32 | 275491 |
| 33 | 276373 |
| 34 | 277273 |
| 35 | 278191 |
| 36 | 363691 |
| 37 | 365473 |
| 38 | 367273 |
| 39 | 455473 |
| 40 | 455491 |
| 41 | 458191 |
| 42 | 459091 |