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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.

A248928 Interleave (2*n+2)^2 with (2*n+3)^2, both listed n+1 times.

Table of values

n a(n)
0 4
1 9
2 16
3 16
4 25
5 25
6 36
7 36
8 36
9 49
10 49
11 49
12 64
13 64
14 64
15 64
16 81
17 81
18 81
19 81
20 100
21 100
22 100
23 100
24 100
25 121
26 121
27 121
28 121
29 121
30 144
31 144
32 144
33 144
34 144
35 144
36 169
37 169
38 169
39 169
40 169
41 169
42 196
43 196
44 196
45 196
46 196
47 196
48 196
49 225
50 225
51 225
52 225
53 225
54 225
55 225

List of values

[4, 9, 16, 16, 25, 25, 36, 36, 36, 49, 49, 49, 64, 64, 64, 64, 81, 81, 81, 81, 100, 100, 100, 100, 100, 121, 121, 121, 121, 121, 144, 144, 144, 144, 144, 144, 169, 169, 169, 169, 169, 169, 196, 196, 196, 196, 196, 196, 196, 225, 225, 225, 225, 225, 225, 225]

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

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