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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.

A144032 Triangle read by rows: T(n,k) = A002321(n-k+1)*A144031(k-1).

Table of values

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

List of values

[1, 0, 1, -1, 0, 1, -1, -1, 0, 0, -2, -1, -1, 0, -2, -1, -2, -1, 0, 0, -6, -2, -1, -2, 0, 2, 0, -10, -2, -2, -1, 0, 2, 6, 0, -13, -2, -2, -2, 0, 46, 10, 0, -10, -1, -2, -2, 0, 2, 12, 10, 13, 0, 4, -2, -1, -2, 0, 4, 6, 10, 13, 10, 0, 36, -2, -2, -1, 0, 4, 12, 10, 26, 10, -4, 0, 84, -3]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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