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.

A340524 Triangle read by rows: T(n,k) = A000005(n-k+1)*A002865(k-1), 1 <= k <= n.

Table of values

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

List of values

[1, 2, 0, 2, 0, 1, 3, 0, 2, 1, 2, 0, 2, 2, 2, 4, 0, 3, 2, 4, 2, 2, 0, 2, 3, 4, 4, 4, 4, 0, 4, 2, 6, 4, 8, 4, 3, 0, 2, 4, 4, 6, 8, 8, 7, 4, 0, 4, 2, 8, 4, 12, 8, 14, 8, 2, 0, 3, 4, 4, 8, 8, 12, 14, 16, 12, 6, 0, 4, 3, 8, 4, 16, 8, 21, 16, 24, 14, 2, 0, 2, 4, 6, 8, 8, 16, 14, 24, 24, 28, 21]