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 | 4 |
| 1 | 5 |
| 2 | 12 |
| 3 | 31 |
| 4 | 68 |
| 5 | 129 |
| 6 | 220 |
| 7 | 347 |
| 8 | 516 |
| 9 | 733 |
| 10 | 1004 |
| 11 | 1335 |
| 12 | 1732 |
| 13 | 2201 |
| 14 | 2748 |
| 15 | 3379 |
| 16 | 4100 |
| 17 | 4917 |
| 18 | 5836 |
| 19 | 6863 |
| 20 | 8004 |
| 21 | 9265 |
| 22 | 10652 |
| 23 | 12171 |
| 24 | 13828 |
| 25 | 15629 |
| 26 | 17580 |
| 27 | 19687 |
| 28 | 21956 |
| 29 | 24393 |
| 30 | 27004 |
| 31 | 29795 |
| 32 | 32772 |
| 33 | 35941 |
| 34 | 39308 |
| 35 | 42879 |
| 36 | 46660 |
| 37 | 50657 |
| 38 | 54876 |
| 39 | 59323 |
| 40 | 64004 |
| 41 | 68925 |