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.

A142971 Triangle read by rows: A061397 with negative signs interleaved with (k-1) zeros.

Table of values

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

List of values

[0, -2, 0, -3, 0, 0, 0, -2, 0, 0, -5, 0, 0, 0, 0, 0, -3, -2, 0, 0, 0, -7, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 0, 0, 0, 0, -5, 0, 0, -2, 0, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, -2, 0, 0, 0, 0, 0, 0, -13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -7, 0, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, -5, 0, -3, 0, 0, 0, 0, 0, 0, 0]