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.

A055091 Minimum number of transpositions needed to represent each permutation given in reversed colexicographic ordering A055089.

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 2
5 1
6 1
7 2
8 2
9 3
10 3
11 2
12 2
13 3
14 1
15 2
16 2
17 3
18 3
19 2
20 2
21 1
22 3
23 2
24 1
25 2
26 2
27 3
28 3
29 2
30 2
31 3
32 3
33 4
34 4
35 3
36 3
37 4
38 2
39 3
40 3
41 4
42 4
43 3
44 3
45 2
46 4
47 3
48 2
49 3
50 3
51 4
52 4
53 3
54 1
55 2
56 2
57 3
58 3
59 2
60 2
61 3
62 3
63 4
64 4
65 3
66 3
67 2
68 4
69 3
70 3
71 4
72 3
73 4
74 2
75 3
76 3
77 4
78 2
79 3
80 1
81 2
82 2
83 3
84 3
85 4
86 2
87 3
88 3
89 4
90 4
91 3
92 3
93 4
94 2
95 3
96 4
97 3
98 3
99 2
100 4
101 3
102 3
103 2
104 2

List of values

[0, 1, 1, 2, 2, 1, 1, 2, 2, 3, 3, 2, 2, 3, 1, 2, 2, 3, 3, 2, 2, 1, 3, 2, 1, 2, 2, 3, 3, 2, 2, 3, 3, 4, 4, 3, 3, 4, 2, 3, 3, 4, 4, 3, 3, 2, 4, 3, 2, 3, 3, 4, 4, 3, 1, 2, 2, 3, 3, 2, 2, 3, 3, 4, 4, 3, 3, 2, 4, 3, 3, 4, 3, 4, 2, 3, 3, 4, 2, 3, 1, 2, 2, 3, 3, 4, 2, 3, 3, 4, 4, 3, 3, 4, 2, 3, 4, 3, 3, 2, 4, 3, 3, 2, 2]