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.

A127448 Triangle T(n,k) read by rows: matrix product A054525 * A127648.

Table of values

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

List of values

[1, -1, 2, -1, 0, 3, 0, -2, 0, 4, -1, 0, 0, 0, 5, 1, -2, -3, 0, 0, 6, -1, 0, 0, 0, 0, 0, 7, 0, 0, 0, -4, 0, 0, 0, 8, 0, 0, -3, 0, 0, 0, 0, 0, 9, 1, -2, 0, 0, -5, 0, 0, 0, 0, 10, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 2, 0, -4, 0, -6, 0, 0, 0, 0, 0, 12, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 1, -2, 0, 0, 0, 0, -7, 0, 0, 0, 0, 0, 0]