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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.

A074174 Smallest number k such that k and k+n are of the form p^2*q where p and q are primes.

Table of values

n a(n)
1 44
2 18
3 172
4 171
5 45
6 12
7 45
8 12
9 236
10 18
11 52
12 63
13 50
14 261
15 524
16 12
17 28
18 45
19 44
20 637
21 404
22 28
23 45
24 20
25 20
26 18
27 18
28 147
29 63
30 20
31 44
32 12
33 12
34 18
35 28
36 63
37 116
38 12
39 236
40 12
41 75
42 50
43 20
44 325
45 18
46 52
47 28
48 20
49 50
50 18
51 12
52 423
53 45
54 44
55 20
56 12
57 18
58 18
59 116
60 147
61 63
62 325
63 12
64 12
65 52

List of values

[44, 18, 172, 171, 45, 12, 45, 12, 236, 18, 52, 63, 50, 261, 524, 12, 28, 45, 44, 637, 404, 28, 45, 20, 20, 18, 18, 147, 63, 20, 44, 12, 12, 18, 28, 63, 116, 12, 236, 12, 75, 50, 20, 325, 18, 52, 28, 20, 50, 18, 12, 423, 45, 44, 20, 12, 18, 18, 116, 147, 63, 325, 12, 12, 52]

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

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