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.

A221265 Numbers having more distinct prime factors of form 4*k+1 than of 4*k+3.

Table of values

n a(n)
1 5
2 10
3 13
4 17
5 20
6 25
7 26
8 29
9 34
10 37
11 40
12 41
13 50
14 52
15 53
16 58
17 61
18 65
19 68
20 73
21 74
22 80
23 82
24 85
25 89
26 97
27 100
28 101
29 104
30 106
31 109
32 113
33 116
34 122
35 125
36 130
37 136
38 137
39 145
40 146
41 148
42 149
43 157
44 160
45 164
46 169
47 170
48 173
49 178
50 181
51 185
52 193
53 194
54 195
55 197
56 200
57 202

List of values

[5, 10, 13, 17, 20, 25, 26, 29, 34, 37, 40, 41, 50, 52, 53, 58, 61, 65, 68, 73, 74, 80, 82, 85, 89, 97, 100, 101, 104, 106, 109, 113, 116, 122, 125, 130, 136, 137, 145, 146, 148, 149, 157, 160, 164, 169, 170, 173, 178, 181, 185, 193, 194, 195, 197, 200, 202]

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

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