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.

A356794 Odd numbers that have at least one prime factor congruent to 1 (mod 4) and at least one prime factor congruent to 3 (mod 4).

Table of values

n a(n)
1 15
2 35
3 39
4 45
5 51
6 55
7 75
8 87
9 91
10 95
11 105
12 111
13 115
14 117
15 119
16 123
17 135
18 143
19 153
20 155
21 159
22 165
23 175
24 183
25 187
26 195
27 203
28 215
29 219
30 225
31 235
32 245
33 247
34 255
35 259
36 261
37 267
38 273
39 275
40 285
41 287
42 291
43 295
44 299
45 303
46 315
47 319
48 323
49 327
50 333
51 335
52 339
53 345
54 351

List of values

[15, 35, 39, 45, 51, 55, 75, 87, 91, 95, 105, 111, 115, 117, 119, 123, 135, 143, 153, 155, 159, 165, 175, 183, 187, 195, 203, 215, 219, 225, 235, 245, 247, 255, 259, 261, 267, 273, 275, 285, 287, 291, 295, 299, 303, 315, 319, 323, 327, 333, 335, 339, 345, 351]

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

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