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 | 1 |
3 | -1 |
4 | 11 |
5 | -137 |
6 | 4157 |
7 | -44879 |
8 | 74351 |
9 | -23262859 |
10 | 113428851 |
11 | -18122193779 |
12 | 593728889477 |
13 | -17199344405209 |
14 | 773610521462677 |
15 | -398027397442098469 |
16 | 7730820046943979149 |
17 | -6072430937404995879629 |
18 | 164713122370768078443379 |