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 | 1 |
2 | -63 |
3 | 19548 |
4 | -16772800 |
5 | 30639466125 |
6 | -102246541593840 |
7 | 563353842016350448 |
8 | -4769009964086911303680 |
9 | 58776044218330627534385025 |
10 | -1011412682021947060157500000000 |
11 | 23501115057383512064004090511345788 |
12 | -717470258224423085595445968714004955136 |