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.

A130540 Triangle read by rows T(n,k) in which column k lists the terms of A000203 interspersed with (k-1) zeros, 1 <= k <= n.

Table of values

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

List of values

[1, 3, 1, 4, 0, 1, 7, 3, 0, 1, 6, 0, 0, 0, 1, 12, 4, 3, 0, 0, 1, 8, 0, 0, 0, 0, 0, 1, 15, 7, 0, 3, 0, 0, 0, 1, 13, 0, 4, 0, 0, 0, 0, 0, 1, 18, 6, 0, 0, 3, 0, 0, 0, 0, 1, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 28, 12, 7, 4, 0, 3, 0, 0, 0, 0, 0, 1, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 24, 8, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 1]