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 | 1 |
| 2 | 30 |
| 3 | 87 |
| 4 | 172 |
| 5 | 285 |
| 6 | 426 |
| 7 | 595 |
| 8 | 792 |
| 9 | 1017 |
| 10 | 1270 |
| 11 | 1551 |
| 12 | 1860 |
| 13 | 2197 |
| 14 | 2562 |
| 15 | 2955 |
| 16 | 3376 |
| 17 | 3825 |
| 18 | 4302 |
| 19 | 4807 |
| 20 | 5340 |
| 21 | 5901 |
| 22 | 6490 |
| 23 | 7107 |
| 24 | 7752 |
| 25 | 8425 |
| 26 | 9126 |
| 27 | 9855 |
| 28 | 10612 |
| 29 | 11397 |
| 30 | 12210 |
| 31 | 13051 |
| 32 | 13920 |
| 33 | 14817 |
| 34 | 15742 |
| 35 | 16695 |
| 36 | 17676 |
| 37 | 18685 |
| 38 | 19722 |
| 39 | 20787 |
| 40 | 21880 |