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.

A079872 a(1)=0, a(n) = signum(round(n^(1/Omega(n)))^Omega(n) - n), where Omega(n) is the total number of prime factors of n (A001222).

Table of values

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

List of values

[0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, -1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, -1, 0, -1, 0, -1, 0, -1, 0, 0, 1, 1, 1, -1, 0, -1, -1, 1, 0, -1, 0, 1, 1, 1, 0, -1, 0, 1, -1, 1, 0, 1, -1, 1, 1, 1, 0, 1, 0, 1, 1, 0, -1, -1, 0, -1, -1, -1, 0, -1, 0, 1, -1, -1, 1, -1, 0, -1, 0, -1, 0, -1, -1, -1, -1, -1, 0, -1, 1, 1, 1, 1, 1, -1]