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.

A004613 Numbers that are divisible only by primes congruent to 1 mod 4.

Table of values

n a(n)
1 1
2 5
3 13
4 17
5 25
6 29
7 37
8 41
9 53
10 61
11 65
12 73
13 85
14 89
15 97
16 101
17 109
18 113
19 125
20 137
21 145
22 149
23 157
24 169
25 173
26 181
27 185
28 193
29 197
30 205
31 221
32 229
33 233
34 241
35 257
36 265
37 269
38 277
39 281
40 289
41 293
42 305
43 313
44 317
45 325
46 337
47 349
48 353
49 365
50 373
51 377
52 389
53 397
54 401
55 409
56 421

List of values

[1, 5, 13, 17, 25, 29, 37, 41, 53, 61, 65, 73, 85, 89, 97, 101, 109, 113, 125, 137, 145, 149, 157, 169, 173, 181, 185, 193, 197, 205, 221, 229, 233, 241, 257, 265, 269, 277, 281, 289, 293, 305, 313, 317, 325, 337, 349, 353, 365, 373, 377, 389, 397, 401, 409, 421]