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.

A218072 Product of the nonzero digits (in base 10) of n^2.

Table of values

n a(n)
1 1
2 4
3 9
4 6
5 10
6 18
7 36
8 24
9 8
10 1
11 2
12 16
13 54
14 54
15 20
16 60
17 144
18 24
19 18
20 4
21 16
22 128
23 90
24 210
25 60
26 252
27 126
28 224
29 32
30 9
31 54
32 8
33 72
34 30
35 20
36 108
37 162
38 64
39 10
40 6
41 48
42 168
43 288
44 162
45 20
46 12
47 36
48 24
49 8
50 10
51 12
52 56
53 144
54 108
55 30
56 54
57 216
58 216
59 96
60 18
61 42
62 384
63 1458

List of values

[1, 4, 9, 6, 10, 18, 36, 24, 8, 1, 2, 16, 54, 54, 20, 60, 144, 24, 18, 4, 16, 128, 90, 210, 60, 252, 126, 224, 32, 9, 54, 8, 72, 30, 20, 108, 162, 64, 10, 6, 48, 168, 288, 162, 20, 12, 36, 24, 8, 10, 12, 56, 144, 108, 30, 54, 216, 216, 96, 18, 42, 384, 1458]