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.

A068512 Numerators of arithmetic derivative of n/2: A003415(n)/2 - n/4; denominators: A010685.

Table of values

n a(n)
1 -1
2 0
3 -1
4 1
5 -3
6 1
7 -5
8 4
9 3
10 1
11 -9
12 5
13 -11
14 1
15 1
16 12
17 -15
18 6
19 -17
20 7
21 -1
22 1
23 -21
24 16
25 -5
26 1
27 27
28 9
29 -27
30 8
31 -29
32 32
33 -5
34 1
35 -11
36 21
37 -35
38 1
39 -7
40 24
41 -39
42 10
43 -41
44 13
45 33
46 1
47 -45
48 44
49 -21
50 10
51 -11
52 15
53 -51
54 27
55 -23
56 32
57 -13
58 1
59 -57
60 31
61 -59

List of values

[-1, 0, -1, 1, -3, 1, -5, 4, 3, 1, -9, 5, -11, 1, 1, 12, -15, 6, -17, 7, -1, 1, -21, 16, -5, 1, 27, 9, -27, 8, -29, 32, -5, 1, -11, 21, -35, 1, -7, 24, -39, 10, -41, 13, 33, 1, -45, 44, -21, 10, -11, 15, -51, 27, -23, 32, -13, 1, -57, 31, -59]