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.

A286236 Square array A(n,k) = P(A000010(k), (n+k-1)/k) if k divides (n+k-1), 0 otherwise, read by descending antidiagonals as A(1,1), A(1,2), A(2,1), etc. Here P is a two-argument form of sequence A000027 used as a pairing function N x N -> N.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 0
6 4
7 3
8 0
9 2
10 7
11 10
12 0
13 0
14 0
15 11
16 3
17 0
18 0
19 5
20 4
21 16
22 21
23 0
24 0
25 0
26 0
27 0
28 22
29 10
30 0
31 0
32 0
33 5
34 0
35 7
36 29
37 21
38 0
39 0
40 0
41 0
42 0
43 8
44 0
45 37
46 10
47 0
48 0
49 0
50 0
51 14
52 0
53 0
54 11
55 46
56 55
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 0
66 56
67 10
68 0
69 0
70 0
71 0
72 0
73 5
74 0
75 8
76 12
77 16
78 67
79 78
80 0
81 0
82 0
83 0
84 0
85 0
86 0
87 0
88 0
89 0
90 0
91 79
92 21
93 0
94 0
95 0
96 0
97 0
98 0
99 27
100 0
101 0
102 0
103 0
104 22
105 92
106 36
107 0
108 0
109 0
110 0
111 0
112 0
113 0
114 0
115 0
116 19
117 0
118 17
119 0
120 106

List of values

[1, 1, 2, 3, 0, 4, 3, 0, 2, 7, 10, 0, 0, 0, 11, 3, 0, 0, 5, 4, 16, 21, 0, 0, 0, 0, 0, 22, 10, 0, 0, 0, 5, 0, 7, 29, 21, 0, 0, 0, 0, 0, 8, 0, 37, 10, 0, 0, 0, 0, 14, 0, 0, 11, 46, 55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 56, 10, 0, 0, 0, 0, 0, 5, 0, 8, 12, 16, 67, 78, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 79, 21, 0, 0, 0, 0, 0, 0, 27, 0, 0, 0, 0, 22, 92, 36, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19, 0, 17, 0, 106]