cp's OEIS Frontend

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.

A224893 Number of subsets A of {0,...,n-1} such that A contains 0 and n-1, and |A+A| > |A-A|.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 0
14 0
15 4
16 2
17 14
18 16
19 42
20 92
21 208
22 382
23 834
24 1748
25 3568
26 7066
27 14914
28 28618
29 60712
30 120872
31 240102
32 483328
33 992812
34 1948804
35 3975364
36 7933368
37 15876692
38 31759760
39 64035868
40 126968066
41 255821994

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 14, 16, 42, 92, 208, 382, 834, 1748, 3568, 7066, 14914, 28618, 60712, 120872, 240102, 483328, 992812, 1948804, 3975364, 7933368, 15876692, 31759760, 64035868, 126968066, 255821994]