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.

A240060 Triangle read by rows, n>=1, 1<=k<=n. T(n,n-k+1) = number of cells in the k-th row = number of cells in the k-th column of the diagram of the symmetric representation of sigma(n) in the first quadrant.

Table of values

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

List of values

[1, 2, 1, 2, 1, 1, 3, 2, 1, 1, 3, 0, 1, 1, 1, 4, 2, 3, 1, 1, 1, 4, 0, 0, 1, 1, 1, 1, 5, 1, 2, 3, 1, 1, 1, 1, 5, 0, 2, 1, 1, 1, 1, 1, 1, 6, 1, 2, 1, 3, 1, 1, 1, 1, 1, 6, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 7, 1, 3, 4, 3, 4, 1, 1, 1, 1, 1, 1, 7, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1]