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.

A261220 Ranks of involutions in permutation orderings A060117 and A060118.

Table of values

n a(n)
0 0
1 1
2 2
3 4
4 6
5 7
6 12
7 16
8 18
9 20
10 24
11 25
12 26
13 28
14 48
15 49
16 60
17 66
18 72
19 76
20 78
21 90
22 96
23 98
24 102
25 108
26 120
27 121
28 122
29 124
30 126
31 127
32 132
33 136
34 138
35 140
36 240
37 241
38 242
39 244
40 288
41 289
42 312
43 316
44 336
45 338
46 360
47 361
48 372
49 378
50 384
51 385
52 432
53 450
54 456
55 468
56 480
57 484
58 486
59 498
60 504
61 508
62 528
63 546
64 576
65 582
66 600
67 602
68 606
69 612
70 624
71 626
72 648
73 660
74 672
75 678
76 720
77 721

List of values

[0, 1, 2, 4, 6, 7, 12, 16, 18, 20, 24, 25, 26, 28, 48, 49, 60, 66, 72, 76, 78, 90, 96, 98, 102, 108, 120, 121, 122, 124, 126, 127, 132, 136, 138, 140, 240, 241, 242, 244, 288, 289, 312, 316, 336, 338, 360, 361, 372, 378, 384, 385, 432, 450, 456, 468, 480, 484, 486, 498, 504, 508, 528, 546, 576, 582, 600, 602, 606, 612, 624, 626, 648, 660, 672, 678, 720, 721]