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.

A248400 Noncongruent squarefree numbers n with A248394(n)/d(n) = -2, where d(n) = A000005(n).

Table of values

n a(n)
1 17
2 89
3 97
4 193
5 217
6 233
7 259
8 305
9 377
10 401
11 449
12 481
13 497
14 617
15 667
16 713
17 745
18 769
19 897
20 929
21 955
22 977
23 979
24 1009
25 1011
26 1027
27 1033
28 1049
29 1065
30 1337
31 1345
32 1355
33 1385
34 1409
35 1417
36 1489
37 1507
38 1555
39 1739
40 1769
41 1771
42 1801
43 1803
44 1817
45 1921
46 1945
47 2001
48 2019

List of values

[17, 89, 97, 193, 217, 233, 259, 305, 377, 401, 449, 481, 497, 617, 667, 713, 745, 769, 897, 929, 955, 977, 979, 1009, 1011, 1027, 1033, 1049, 1065, 1337, 1345, 1355, 1385, 1409, 1417, 1489, 1507, 1555, 1739, 1769, 1771, 1801, 1803, 1817, 1921, 1945, 2001, 2019]