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.

A004614 Numbers that are divisible only by primes congruent to 3 mod 4.

Table of values

n a(n)
1 1
2 3
3 7
4 9
5 11
6 19
7 21
8 23
9 27
10 31
11 33
12 43
13 47
14 49
15 57
16 59
17 63
18 67
19 69
20 71
21 77
22 79
23 81
24 83
25 93
26 99
27 103
28 107
29 121
30 127
31 129
32 131
33 133
34 139
35 141
36 147
37 151
38 161
39 163
40 167
41 171
42 177
43 179
44 189
45 191
46 199
47 201
48 207
49 209
50 211
51 213
52 217
53 223
54 227
55 231
56 237
57 239
58 243
59 249
60 251

List of values

[1, 3, 7, 9, 11, 19, 21, 23, 27, 31, 33, 43, 47, 49, 57, 59, 63, 67, 69, 71, 77, 79, 81, 83, 93, 99, 103, 107, 121, 127, 129, 131, 133, 139, 141, 147, 151, 161, 163, 167, 171, 177, 179, 189, 191, 199, 201, 207, 209, 211, 213, 217, 223, 227, 231, 237, 239, 243, 249, 251]

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

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