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.

A272083 Irregular triangle read by rows: strictly decreasing positive integer sequences in lexicographic order with the property that the sum of inverses equals one.

Table of values

n a(n)
1 1
2 6
3 3
4 2
5 12
6 6
7 4
8 2
9 15
10 10
11 3
12 2
13 15
14 12
15 10
16 4
17 2
18 15
19 12
20 10
21 6
22 4
23 3
24 18
25 9
26 3
27 2
28 18
29 12
30 9
31 4
32 2
33 18
34 12
35 9
36 6
37 4
38 3
39 18
40 15
41 10
42 9
43 6
44 2
45 18
46 15
47 12
48 10
49 9
50 4
51 3
52 20
53 5
54 4
55 2
56 20
57 6
58 5
59 4
60 3
61 20
62 12
63 6
64 5
65 2
66 20
67 15
68 10
69 5
70 4
71 3
72 20
73 15
74 12
75 10
76 5

List of values

[1, 6, 3, 2, 12, 6, 4, 2, 15, 10, 3, 2, 15, 12, 10, 4, 2, 15, 12, 10, 6, 4, 3, 18, 9, 3, 2, 18, 12, 9, 4, 2, 18, 12, 9, 6, 4, 3, 18, 15, 10, 9, 6, 2, 18, 15, 12, 10, 9, 4, 3, 20, 5, 4, 2, 20, 6, 5, 4, 3, 20, 12, 6, 5, 2, 20, 15, 10, 5, 4, 3, 20, 15, 12, 10, 5]

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

Content is available under The OEIS End-User License Agreement.