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.

A030098 Squares whose digits are all even.

Table of values

n a(n)
1 0
2 4
3 64
4 400
5 484
6 4624
7 6084
8 6400
9 8464
10 26244
11 28224
12 40000
13 40804
14 48400
15 68644
16 88804
17 228484
18 242064
19 248004
20 446224
21 462400
22 608400
23 640000
24 806404
25 824464
26 846400
27 868624
28 2022084
29 2226064
30 2244004
31 2624400
32 2822400
33 2862864
34 4000000
35 4008004
36 4080400

List of values

[0, 4, 64, 400, 484, 4624, 6084, 6400, 8464, 26244, 28224, 40000, 40804, 48400, 68644, 88804, 228484, 242064, 248004, 446224, 462400, 608400, 640000, 806404, 824464, 846400, 868624, 2022084, 2226064, 2244004, 2624400, 2822400, 2862864, 4000000, 4008004, 4080400]