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.

A138808 Number of integer pairs (x,y), x > 0, y > 0, such that x <= p, y <= q for any factorization n = p*q.

Table of values

n a(n)
1 1
2 3
3 5
4 8
5 9
6 14
7 13
8 20
9 21
10 26
11 21
12 35
13 25
14 38
15 41
16 48
17 33
18 57
19 37
20 64
21 61
22 62
23 45
24 84
25 65
26 74
27 81
28 96
29 57
30 109
31 61
32 112
33 101
34 98
35 101
36 138
37 73
38 110
39 121
40 151
41 81
42 160
43 85
44 160
45 161
46 134
47 93
48 196
49 133
50 185
51 161
52 192
53 105
54 216
55 173
56 223
57 181
58 170
59 117
60 258

List of values

[1, 3, 5, 8, 9, 14, 13, 20, 21, 26, 21, 35, 25, 38, 41, 48, 33, 57, 37, 64, 61, 62, 45, 84, 65, 74, 81, 96, 57, 109, 61, 112, 101, 98, 101, 138, 73, 110, 121, 151, 81, 160, 85, 160, 161, 134, 93, 196, 133, 185, 161, 192, 105, 216, 173, 223, 181, 170, 117, 258]

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

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