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.

A303269 Sum of squares of odd digits minus sum of squares of even digits of n.

Table of values

n a(n)
0 0
1 1
2 -4
3 9
4 -16
5 25
6 -36
7 49
8 -64
9 81
10 1
11 2
12 -3
13 10
14 -15
15 26
16 -35
17 50
18 -63
19 82
20 -4
21 -3
22 -8
23 5
24 -20
25 21
26 -40
27 45
28 -68
29 77
30 9
31 10
32 5
33 18
34 -7
35 34
36 -27
37 58
38 -55
39 90
40 -16
41 -15
42 -20
43 -7
44 -32
45 9
46 -52
47 33
48 -80
49 65
50 25
51 26
52 21
53 34
54 9
55 50
56 -11
57 74
58 -39
59 106
60 -36
61 -35
62 -40
63 -27

List of values

[0, 1, -4, 9, -16, 25, -36, 49, -64, 81, 1, 2, -3, 10, -15, 26, -35, 50, -63, 82, -4, -3, -8, 5, -20, 21, -40, 45, -68, 77, 9, 10, 5, 18, -7, 34, -27, 58, -55, 90, -16, -15, -20, -7, -32, 9, -52, 33, -80, 65, 25, 26, 21, 34, 9, 50, -11, 74, -39, 106, -36, -35, -40, -27]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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