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.

A129647 Largest order of a permutation of n elements with exactly 2 cycles. Also the largest LCM of a 2-partition of n.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 6
6 5
7 12
8 15
9 20
10 21
11 30
12 35
13 42
14 45
15 56
16 63
17 72
18 77
19 90
20 99
21 110
22 117
23 132
24 143
25 156
26 165
27 182
28 195
29 210
30 221
31 240
32 255
33 272
34 285
35 306
36 323
37 342
38 357
39 380
40 399
41 420
42 437
43 462
44 483
45 506
46 525
47 552
48 575
49 600
50 621
51 650
52 675
53 702
54 725
55 756
56 783
57 812
58 837

List of values

[0, 1, 2, 3, 6, 5, 12, 15, 20, 21, 30, 35, 42, 45, 56, 63, 72, 77, 90, 99, 110, 117, 132, 143, 156, 165, 182, 195, 210, 221, 240, 255, 272, 285, 306, 323, 342, 357, 380, 399, 420, 437, 462, 483, 506, 525, 552, 575, 600, 621, 650, 675, 702, 725, 756, 783, 812, 837]

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

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