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 | 0 |
| 1 | 0 |
| 2 | 4 |
| 3 | 13 |
| 4 | 30 |
| 5 | 59 |
| 6 | 102 |
| 7 | 162 |
| 8 | 241 |
| 9 | 344 |
| 10 | 471 |
| 11 | 627 |
| 12 | 815 |
| 13 | 1036 |
| 14 | 1294 |
| 15 | 1591 |
| 16 | 1931 |
| 17 | 2316 |
| 18 | 2749 |
| 19 | 3233 |
| 20 | 3771 |
| 21 | 4366 |
| 22 | 5020 |
| 23 | 5736 |
| 24 | 6517 |
| 25 | 7366 |
| 26 | 8285 |
| 27 | 9279 |
| 28 | 10348 |
| 29 | 11497 |
| 30 | 12728 |
| 31 | 14044 |
| 32 | 15447 |
| 33 | 16941 |
| 34 | 18528 |
| 35 | 20211 |
| 36 | 21994 |
| 37 | 23878 |
| 38 | 25867 |
| 39 | 27963 |
| 40 | 30170 |
| 41 | 32490 |