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.

A383672 Squarefree numbers k such that k^2+1 is not squarefree.

Table of values

n a(n)
1 7
2 38
3 41
4 43
5 57
6 70
7 82
8 93
9 107
10 118
11 143
12 157
13 182
14 193
15 218
16 239
17 251
18 257
19 282
20 293
21 307
22 318
23 327
24 357
25 382
26 393
27 407
28 418
29 437
30 443
31 457
32 482
33 493
34 515
35 518
36 543
37 557
38 577
39 582
40 593
41 606
42 607
43 618
44 643
45 682
46 707
47 718
48 743
49 746
50 757
51 782
52 793
53 807
54 818
55 829
56 843
57 857
58 893

List of values

[7, 38, 41, 43, 57, 70, 82, 93, 107, 118, 143, 157, 182, 193, 218, 239, 251, 257, 282, 293, 307, 318, 327, 357, 382, 393, 407, 418, 437, 443, 457, 482, 493, 515, 518, 543, 557, 577, 582, 593, 606, 607, 618, 643, 682, 707, 718, 743, 746, 757, 782, 793, 807, 818, 829, 843, 857, 893]

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

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