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.

A127649 A127648 * A054523 as infinite lower triangular matrices.

Table of values

n a(n)
1 1
2 2
3 2
4 6
5 0
6 3
7 8
8 4
9 0
10 4
11 20
12 0
13 0
14 0
15 5
16 12
17 12
18 6
19 0
20 0
21 6
22 42
23 0
24 0
25 0
26 0
27 0
28 7
29 32
30 16
31 0
32 8
33 0
34 0
35 0
36 8
37 54
38 0
39 18
40 0
41 0
42 0
43 0
44 0
45 9
46 40
47 40
48 0
49 0
50 10
51 0
52 0
53 0
54 0
55 10
56 110
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 0
66 11
67 48
68 24
69 24
70 24
71 0
72 12
73 0
74 0
75 0
76 0
77 0
78 12
79 156
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 84

List of values

[1, 2, 2, 6, 0, 3, 8, 4, 0, 4, 20, 0, 0, 0, 5, 12, 12, 6, 0, 0, 6, 42, 0, 0, 0, 0, 0, 7, 32, 16, 0, 8, 0, 0, 0, 8, 54, 0, 18, 0, 0, 0, 0, 0, 9, 40, 40, 0, 0, 10, 0, 0, 0, 0, 10, 110, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 48, 24, 24, 24, 0, 12, 0, 0, 0, 0, 0, 12, 156, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 84]