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.

A268381 Numbers having at least the same number of prime factors of the form 4*k+1 than of the form 4*k+3, when counted with multiplicity.

Table of values

n a(n)
1 1
2 2
3 4
4 5
5 8
6 10
7 13
8 15
9 16
10 17
11 20
12 25
13 26
14 29
15 30
16 32
17 34
18 35
19 37
20 39
21 40
22 41
23 50
24 51
25 52
26 53
27 55
28 58
29 60
30 61
31 64
32 65
33 68
34 70
35 73
36 74
37 75
38 78
39 80
40 82
41 85
42 87
43 89
44 91
45 95
46 97
47 100
48 101
49 102
50 104
51 106
52 109
53 110
54 111
55 113
56 115
57 116
58 119
59 120
60 122
61 123
62 125
63 128
64 130
65 136
66 137
67 140
68 143
69 145
70 146
71 148
72 149
73 150

List of values

[1, 2, 4, 5, 8, 10, 13, 15, 16, 17, 20, 25, 26, 29, 30, 32, 34, 35, 37, 39, 40, 41, 50, 51, 52, 53, 55, 58, 60, 61, 64, 65, 68, 70, 73, 74, 75, 78, 80, 82, 85, 87, 89, 91, 95, 97, 100, 101, 102, 104, 106, 109, 110, 111, 113, 115, 116, 119, 120, 122, 123, 125, 128, 130, 136, 137, 140, 143, 145, 146, 148, 149, 150]