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.

A185581 Decimal expansion of 8*Sum_{m,n,p = -infinity..infinity} (-1)^(m + n + p)/ sqrt( (2*m-1/2)^2+(2*n-1/2)^2+(2*p-1/2)^2 ).

Table of values

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

List of values

[2, 5, 3, 3, 5, 5, 7, 4, 0, 4, 4, 3, 3, 1, 2, 1, 0, 2, 5, 2, 9, 4, 8, 6, 2, 7, 9, 5, 7, 1, 8, 9, 2, 9, 1, 1, 1, 1, 2, 9, 7, 9, 6, 9, 6, 3, 9, 8, 2, 7, 4, 9, 9, 5, 8, 9, 7, 0, 3, 6, 9, 7, 0, 6, 5, 3, 4, 5, 3, 6, 3, 0, 6, 1, 2, 0, 3, 5, 5, 6, 9, 7, 0, 8, 0, 1, 6, 4, 9, 3, 0, 6, 1, 0, 8, 8, 8, 1, 1, 3, 7, 1, 0, 4, 2]