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.

A278520 a(n) = A243503(n) - A056239(n).

Table of values

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

List of values

[0, 0, 0, 0, 0, 1, 0, 0, -1, 2, 0, 2, 0, 3, 0, 0, 0, 0, 0, 4, 1, 4, 0, 3, -2, 5, -2, 6, 0, 2, 0, 0, 2, 6, -1, 1, 0, 7, 3, 6, 0, 4, 0, 8, 0, 8, 0, 4, -3, 0, 4, 10, 0, -1, 0, 9, 5, 9, 0, 4, 0, 10, 2, 0, 1, 6, 0, 12, 6, 2, 0, 2, 0, 11, -2, 14, -2, 8, 0, 8, -3, 12, 0, 7, 2, 13, 7, 12, 0, 2, -1, 16, 8, 14, 3, 5, 0, 0, 4, 2, 0, 10, 0, 15, 0, 15, 0, 0, 0, 4, 9, 12, 0, 12]