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 | 4 |
1 | -4 |
2 | 8 |
3 | -32 |
4 | -32 |
5 | -64 |
6 | -256 |
7 | 256 |
8 | -512 |
9 | 2048 |
10 | 2048 |
11 | 4096 |
12 | 16384 |
13 | -16384 |
14 | 32768 |
15 | -131072 |
16 | -131072 |
17 | -262144 |
18 | -1048576 |
19 | 1048576 |
20 | -2097152 |
21 | 8388608 |
22 | 8388608 |
23 | 16777216 |
24 | 67108864 |
25 | -67108864 |
26 | 134217728 |
27 | -536870912 |
28 | -536870912 |
29 | -1073741824 |