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.

A185179 Irregular triangle, read by rows, of the A185178(n) values of the permanent of an n X n (0,1)-matrix (n>=3) with exactly three 1's in each row and each column.

Table of values

n a(n)
3 6
4 9
5 12
6 13
7 17
8 18
9 20
10 36
11 24
12 25
13 26
14 27
15 30
16 31
17 32
18 54
19 33
20 34
21 35
22 36
23 37
24 38
25 39
26 40
27 41
28 42
29 44
30 45
31 48
32 49
33 52
34 72
35 78
36 81
37 42
38 44
39 45
40 46
41 47
42 48
43 49
44 50
45 51
46 52
47 53
48 54
49 55
50 56
51 57
52 58
53 59
54 60
55 62
56 63
57 64
58 66
59 68
60 70
61 72
62 78
63 84
64 102
65 108
66 117
67 120
68 216

List of values

[6, 9, 12, 13, 17, 18, 20, 36, 24, 25, 26, 27, 30, 31, 32, 54, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 48, 49, 52, 72, 78, 81, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 66, 68, 70, 72, 78, 84, 102, 108, 117, 120, 216]