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.

A209190 Least prime factor of reversal of digits of n.

Table of values

n a(n)
1 1
2 2
3 3
4 2
5 5
6 2
7 7
8 2
9 3
10 1
11 11
12 3
13 31
14 41
15 3
16 61
17 71
18 3
19 7
20 2
21 2
22 2
23 2
24 2
25 2
26 2
27 2
28 2
29 2
30 3
31 13
32 23
33 3
34 43
35 53
36 3
37 73
38 83
39 3
40 2
41 2
42 2
43 2
44 2
45 2
46 2
47 2
48 2
49 2
50 5
51 3
52 5
53 5
54 3
55 5
56 5
57 3
58 5
59 5
60 2
61 2
62 2
63 2
64 2
65 2
66 2
67 2
68 2
69 2
70 7
71 17
72 3
73 37
74 47
75 3
76 67
77 7
78 3
79 97
80 2
81 2
82 2

List of values

[1, 2, 3, 2, 5, 2, 7, 2, 3, 1, 11, 3, 31, 41, 3, 61, 71, 3, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 13, 23, 3, 43, 53, 3, 73, 83, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 3, 5, 5, 3, 5, 5, 3, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 7, 17, 3, 37, 47, 3, 67, 7, 3, 97, 2, 2, 2]

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

Content is available under The OEIS End-User License Agreement.