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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.

A211191 List of odd values of k for which k^2+4 has a factor that is a square number larger than 1.

Table of values

n a(n)
1 11
2 29
3 39
4 61
5 89
6 111
7 139
8 161
9 189
10 199
11 211
12 213
13 239
14 261
15 289
16 309
17 311
18 339
19 361
20 365
21 367
22 389
23 393
24 411
25 439
26 461
27 489
28 511
29 521
30 539
31 561
32 589
33 611
34 639
35 647
36 661
37 689
38 705
39 711
40 739
41 759
42 761
43 789
44 791
45 811
46 839
47 861
48 889
49 911
50 923
51 925
52 939
53 943
54 961
55 985
56 989

List of values

[11, 29, 39, 61, 89, 111, 139, 161, 189, 199, 211, 213, 239, 261, 289, 309, 311, 339, 361, 365, 367, 389, 393, 411, 439, 461, 489, 511, 521, 539, 561, 589, 611, 639, 647, 661, 689, 705, 711, 739, 759, 761, 789, 791, 811, 839, 861, 889, 911, 923, 925, 939, 943, 961, 985, 989]

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

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