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.

A131843 Triangle read by rows: 2*A131821 - A000012.

Table of values

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

List of values

[1, 3, 3, 5, 1, 5, 7, 1, 1, 7, 9, 1, 1, 1, 9, 11, 1, 1, 1, 1, 11, 13, 1, 1, 1, 1, 1, 13, 15, 1, 1, 1, 1, 1, 1, 15, 17, 1, 1, 1, 1, 1, 1, 1, 17, 19, 1, 1, 1, 1, 1, 1, 1, 1, 19, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 21, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 25, 27, 1, 1, 1, 1, 1]