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) |
|---|---|
| 0 | 2 |
| 1 | 7 |
| 2 | 12 |
| 3 | 37 |
| 4 | 42 |
| 5 | 72 |
| 6 | 217 |
| 7 | 222 |
| 8 | 252 |
| 9 | 432 |
| 10 | 1297 |
| 11 | 1302 |
| 12 | 1332 |
| 13 | 1512 |
| 14 | 2592 |
| 15 | 7777 |
| 16 | 7782 |
| 17 | 7812 |
| 18 | 7992 |
| 19 | 9072 |
| 20 | 15552 |
| 21 | 46657 |
| 22 | 46662 |
| 23 | 46692 |
| 24 | 46872 |
| 25 | 47952 |
| 26 | 54432 |
| 27 | 93312 |
| 28 | 279937 |
| 29 | 279942 |
| 30 | 279972 |
| 31 | 280152 |
| 32 | 281232 |
| 33 | 287712 |
| 34 | 326592 |
| 35 | 559872 |
| 36 | 1679617 |
| 37 | 1679622 |
| 38 | 1679652 |
| 39 | 1679832 |