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 | -1 |
2 | 9 |
3 | -153 |
4 | 4977 |
5 | -261009 |
6 | 20039481 |
7 | -2121958377 |
8 | 296297348193 |
9 | -52750142341281 |
10 | 11662264481073129 |
11 | -3134732109393169593 |
12 | 1006734732695870345937 |
13 | -380718482718134681818929 |
14 | 167456229155543640166939161 |
15 | -84761007600911799530893148937 |