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.

A285574 Irregular triangle read by rows which arises from a diagram which is similar to the diagram of A261699, but here the even-indexed zig-zag lines are located on the right-hand side of the vertical axis of the diagram.

Table of values

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

List of values

[1, 1, 1, 3, 1, 0, 1, 5, 1, 3, 0, 1, 0, 7, 1, 0, 0, 1, 3, 9, 1, 0, 5, 0, 1, 0, 0, 11, 1, 3, 0, 0, 1, 0, 0, 13, 1, 0, 7, 0, 1, 3, 5, 0, 15, 1, 0, 0, 0, 0, 1, 0, 0, 0, 17, 1, 3, 0, 9, 0, 1, 0, 0, 0, 19, 1, 0, 5, 0, 0, 1, 3, 0, 7, 0, 21, 1, 0, 0, 0, 11, 0, 1, 0, 0, 0, 0, 23, 1, 3, 0, 0, 0, 0, 1, 0, 5, 0, 0, 25]