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.

A083870 Number of pairs (x,y) of palindromes such that n-th decimal palindrome = x*y and 1<=x<=y.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 2
7 1
8 2
9 2
10 1
11 2
12 2
13 3
14 2
15 4
16 2
17 4
18 3
19 1
20 1
21 2
22 1
23 1
24 1
25 1
26 1
27 1
28 1
29 2
30 1
31 2
32 1
33 3
34 1
35 2
36 1
37 2
38 1
39 2
40 1
41 1
42 2
43 1
44 1
45 3
46 1
47 1
48 2
49 3
50 1
51 2
52 1
53 3
54 1
55 2
56 1
57 5
58 1
59 2
60 1
61 1
62 1
63 1
64 2
65 1
66 1
67 1
68 1
69 4
70 3
71 2
72 2
73 2
74 1
75 4
76 1
77 2
78 2
79 2
80 1
81 1
82 1
83 1
84 1
85 1
86 2
87 1
88 1
89 4
90 1
91 2
92 1
93 3
94 1
95 2
96 1
97 4
98 1
99 3
100 1
101 1
102 2
103 1
104 1
105 2

List of values

[1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 2, 2, 3, 2, 4, 2, 4, 3, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 2, 3, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 2, 2, 2, 1, 4, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 4, 1, 2, 1, 3, 1, 2, 1, 4, 1, 3, 1, 1, 2, 1, 1, 2]