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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.

A073045 Nonprime solutions to sopfr(n) = S(n), where sopfr(n) = A001414 and S(n) = A002034.

Table of values

n a(n)
1 4
2 9
3 25
4 27
5 49
6 121
7 125
8 169
9 289
10 343
11 361
12 529
13 625
14 841
15 961
16 1331
17 1369
18 1681
19 1849
20 2197
21 2209
22 2401
23 2809
24 3125
25 3481
26 3721
27 4489
28 4913
29 5041
30 5329
31 6241
32 6859
33 6889
34 7921
35 9409
36 10201
37 10609
38 11449
39 11881
40 12167
41 12769
42 14641
43 16129
44 16807

List of values

[4, 9, 25, 27, 49, 121, 125, 169, 289, 343, 361, 529, 625, 841, 961, 1331, 1369, 1681, 1849, 2197, 2209, 2401, 2809, 3125, 3481, 3721, 4489, 4913, 5041, 5329, 6241, 6859, 6889, 7921, 9409, 10201, 10609, 11449, 11881, 12167, 12769, 14641, 16129, 16807]

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

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