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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.

A175003 Triangle read by rows demonstrating Euler's pentagonal theorem for partition numbers.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 3
7 2
8 5
9 3
10 -1
11 7
12 5
13 -1
14 11
15 7
16 -2
17 -1
18 15
19 11
20 -3
21 -1
22 22
23 15
24 -5
25 -2
26 30
27 22
28 -7
29 -3
30 42
31 30
32 -11
33 -5
34 56
35 42
36 -15
37 -7
38 1
39 77
40 56
41 -22
42 -11
43 1
44 101
45 77
46 -30
47 -15
48 2
49 135
50 101
51 -42
52 -22
53 3
54 1
55 176
56 135
57 -56
58 -30
59 5
60 1
61 231
62 176
63 -77
64 -42
65 7
66 2

List of values

[1, 1, 1, 2, 1, 3, 2, 5, 3, -1, 7, 5, -1, 11, 7, -2, -1, 15, 11, -3, -1, 22, 15, -5, -2, 30, 22, -7, -3, 42, 30, -11, -5, 56, 42, -15, -7, 1, 77, 56, -22, -11, 1, 101, 77, -30, -15, 2, 135, 101, -42, -22, 3, 1, 176, 135, -56, -30, 5, 1, 231, 176, -77, -42, 7, 2]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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