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.

A319047 Square array A(n,k) where column k is balanced (2k+1)-ary enumeration of integers; n>=0, k>=1, read by antidiagonals.

Table of values

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

List of values

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