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.

A115717 A divide-and-conquer triangle related to A007583.

Table of values

n a(n)
0 1
1 0
2 1
3 3
4 -1
5 1
6 0
7 0
8 0
9 1
10 0
11 4
12 -1
13 -1
14 1
15 0
16 0
17 0
18 0
19 0
20 1
21 12
22 -4
23 4
24 0
25 -1
26 -1
27 1
28 0
29 0
30 0
31 0
32 0
33 0
34 0
35 1
36 0
37 0
38 0
39 4
40 0
41 0
42 -1
43 -1
44 1
45 0
46 0
47 0
48 0
49 0
50 0
51 0
52 0
53 0
54 1
55 0
56 16
57 -4
58 -4
59 4
60 0
61 0
62 0
63 -1
64 -1
65 1
66 0
67 0
68 0
69 0
70 0
71 0
72 0
73 0
74 0
75 0
76 0
77 1
78 0
79 0
80 0
81 0
82 0
83 4
84 0
85 0
86 0
87 0
88 -1
89 -1
90 1
91 0
92 0
93 0
94 0
95 0
96 0
97 0
98 0
99 0
100 0
101 0
102 0
103 0
104 1
105 48
106 -16
107 16
108 0
109 -4
110 -4
111 4
112 0
113 0
114 0
115 0
116 0
117 -1
118 -1
119 1

List of values

[1, 0, 1, 3, -1, 1, 0, 0, 0, 1, 0, 4, -1, -1, 1, 0, 0, 0, 0, 0, 1, 12, -4, 4, 0, -1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 4, 0, 0, -1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 16, -4, -4, 4, 0, 0, 0, -1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, -1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 48, -16, 16, 0, -4, -4, 4, 0, 0, 0, 0, 0, -1, -1, 1]