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 | 18 |
| 2 | 45 |
| 3 | 99 |
| 4 | 279 |
| 5 | 747 |
| 6 | 909 |
| 7 | 1611 |
| 8 | 1737 |
| 9 | 2007 |
| 10 | 2259 |
| 11 | 2439 |
| 12 | 2799 |
| 13 | 3879 |
| 14 | 5193 |
| 15 | 5571 |
| 16 | 5787 |
| 17 | 6147 |
| 18 | 6219 |
| 19 | 6471 |
| 20 | 6813 |
| 21 | 6849 |
| 22 | 7677 |
| 23 | 8271 |
| 24 | 8577 |
| 25 | 8703 |
| 26 | 8739 |
| 27 | 8793 |
| 28 | 9279 |
| 29 | 9549 |
| 30 | 9621 |
| 31 | 10107 |
| 32 | 10161 |
| 33 | 10629 |
| 34 | 10953 |
| 35 | 11241 |
| 36 | 11511 |
| 37 | 11619 |
| 38 | 11709 |
| 39 | 13329 |
| 40 | 14031 |