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.

A137721 Number of numbers not greater than n with no prime gaps in their factorization.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 10, 11, 12, 12, 13, 14, 15, 16, 17, 17, 17, 17, 18, 19, 20, 20, 21, 21, 22, 23, 24, 25, 25, 25, 26, 27, 28, 28, 28, 28, 29, 29, 30, 30, 31, 31, 32, 33, 34, 34, 34, 34, 35, 36, 36, 36, 36, 36, 37, 38, 39, 39, 39, 40, 40, 40, 41, 41, 41, 41, 42, 43, 44]

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

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