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 | 1 |
| 1 | 9 |
| 2 | 41 |
| 3 | 129 |
| 4 | 321 |
| 5 | 625 |
| 6 | 997 |
| 7 | 1413 |
| 8 | 1885 |
| 9 | 2425 |
| 10 | 3033 |
| 11 | 3709 |
| 12 | 4453 |
| 13 | 5265 |
| 14 | 6145 |
| 15 | 7093 |
| 16 | 8109 |
| 17 | 9193 |
| 18 | 10345 |
| 19 | 11565 |
| 20 | 12853 |
| 21 | 14209 |
| 22 | 15633 |
| 23 | 17125 |
| 24 | 18685 |
| 25 | 20313 |
| 26 | 22009 |
| 27 | 23773 |
| 28 | 25605 |
| 29 | 27505 |
| 30 | 29473 |
| 31 | 31509 |
| 32 | 33613 |
| 33 | 35785 |
| 34 | 38025 |
| 35 | 40333 |
| 36 | 42709 |
| 37 | 45153 |
| 38 | 47665 |
| 39 | 50245 |
| 40 | 52893 |