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 | 0 |
| 2 | 1 |
| 3 | 6 |
| 4 | 20 |
| 5 | 48 |
| 6 | 102 |
| 7 | 184 |
| 8 | 317 |
| 9 | 506 |
| 10 | 772 |
| 11 | 1118 |
| 12 | 1593 |
| 13 | 2180 |
| 14 | 2949 |
| 15 | 3882 |
| 16 | 5011 |
| 17 | 6356 |
| 18 | 8013 |
| 19 | 9922 |
| 20 | 12224 |
| 21 | 14854 |
| 22 | 17878 |
| 23 | 21302 |
| 24 | 25301 |
| 25 | 29748 |
| 26 | 34825 |
| 27 | 40470 |
| 28 | 46800 |
| 29 | 53770 |
| 30 | 61658 |
| 31 | 70214 |
| 32 | 79821 |
| 33 | 90316 |
| 34 | 101809 |
| 35 | 114278 |
| 36 | 127911 |
| 37 | 142540 |
| 38 | 158663 |
| 39 | 176010 |
| 40 | 194749 |