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.

A092479 T(n,k) is the number of numbers <= 2^n having exactly k prime factors (with repetitions), 0<=k<=n, triangle read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 4
8 2
9 1
10 1
11 6
12 6
13 2
14 1
15 1
16 11
17 10
18 7
19 2
20 1
21 1
22 18
23 22
24 13
25 7
26 2
27 1
28 1
29 31
30 42
31 30
32 14
33 7
34 2
35 1
36 1
37 54
38 82
39 60
40 34
41 15
42 7
43 2
44 1
45 1
46 97
47 157
48 125
49 71
50 36
51 15
52 7
53 2
54 1
55 1
56 172
57 304
58 256
59 152
60 77
61 37
62 15
63 7
64 2
65 1
66 1
67 309
68 589
69 513
70 325
71 168
72 81
73 37
74 15
75 7
76 2
77 1
78 1
79 564
80 1124
81 1049
82 669
83 367
84 177
85 83
86 37
87 15
88 7
89 2
90 1

List of values

[1, 1, 1, 1, 2, 1, 1, 4, 2, 1, 1, 6, 6, 2, 1, 1, 11, 10, 7, 2, 1, 1, 18, 22, 13, 7, 2, 1, 1, 31, 42, 30, 14, 7, 2, 1, 1, 54, 82, 60, 34, 15, 7, 2, 1, 1, 97, 157, 125, 71, 36, 15, 7, 2, 1, 1, 172, 304, 256, 152, 77, 37, 15, 7, 2, 1, 1, 309, 589, 513, 325, 168, 81, 37, 15, 7, 2, 1, 1, 564, 1124, 1049, 669, 367, 177, 83, 37, 15, 7, 2, 1]