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 | 7 |
| 3 | 21 |
| 4 | 45 |
| 5 | 75 |
| 6 | 105 |
| 7 | 285 |
| 8 | 488 |
| 9 | 585 |
| 10 | 765 |
| 11 | 1148 |
| 12 | 1275 |
| 13 | 1358 |
| 14 | 1785 |
| 15 | 2528 |
| 16 | 3465 |
| 17 | 4088 |
| 18 | 6825 |
| 19 | 9405 |
| 20 | 12375 |
| 21 | 14348 |
| 22 | 15345 |
| 23 | 16208 |
| 24 | 16988 |
| 25 | 23648 |
| 26 | 25905 |
| 27 | 25935 |
| 28 | 42698 |
| 29 | 50018 |
| 30 | 52845 |
| 31 | 54615 |
| 32 | 61448 |
| 33 | 62865 |
| 34 | 68445 |
| 35 | 78195 |
| 36 | 80025 |
| 37 | 82005 |
| 38 | 88328 |
| 39 | 93555 |
| 40 | 98475 |