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.

A195838 Triangle read by rows which arises from A195828, in the same way as A175003 arises from A195310. Column k starts at row A001082(k+1).

Table of values

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

List of values

[1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 4, 1, -1, 4, 1, -1, 4, 2, -1, 5, 3, -1, 7, 4, -1, 10, 4, -2, 12, 4, -3, 13, 5, -4, 14, 7, -4, -1, 16, 10, -4, -1, 21, 12, -5, -1, 27, 13, -7, -1, 32, 14, -10, -1, 35, 16, -12, -2, 1, 38, 21, -13, -3, 1, 44, 32, -14, -4, 1]