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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 13 |
| 5 | 15 |
| 6 | 25 |
| 7 | 63 |
| 8 | 65 |
| 9 | 75 |
| 10 | 125 |
| 11 | 313 |
| 12 | 315 |
| 13 | 325 |
| 14 | 375 |
| 15 | 625 |
| 16 | 1563 |
| 17 | 1565 |
| 18 | 1575 |
| 19 | 1625 |
| 20 | 1875 |
| 21 | 3125 |
| 22 | 7813 |
| 23 | 7815 |
| 24 | 7825 |
| 25 | 7875 |
| 26 | 8125 |
| 27 | 9375 |
| 28 | 15625 |
| 29 | 39063 |
| 30 | 39065 |
| 31 | 39075 |
| 32 | 39125 |
| 33 | 39375 |
| 34 | 40625 |
| 35 | 46875 |
| 36 | 78125 |