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 | 1 |
| 1 | 126 |
| 2 | 756 |
| 3 | 2072 |
| 4 | 4158 |
| 5 | 7560 |
| 6 | 11592 |
| 7 | 16704 |
| 8 | 24948 |
| 9 | 31878 |
| 10 | 39816 |
| 11 | 55944 |
| 12 | 66584 |
| 13 | 76104 |
| 14 | 99792 |
| 15 | 116928 |
| 16 | 133182 |
| 17 | 160272 |
| 18 | 177660 |
| 19 | 205128 |
| 20 | 249480 |
| 21 | 265104 |
| 22 | 281736 |
| 23 | 350784 |
| 24 | 382536 |
| 25 | 390726 |
| 26 | 470232 |
| 27 | 505568 |
| 28 | 532800 |
| 29 | 615384 |
| 30 | 640080 |
| 31 | 701568 |
| 32 | 799092 |
| 33 | 809424 |
| 34 | 853776 |