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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.

A380585 a(n) = floor(n^2 / 10^m) + (n^2 mod 10^m) where m is the number of decimal digits in n.

Table of values

n a(n)
0 0
1 1
2 4
3 9
4 7
5 7
6 9
7 13
8 10
9 9
10 1
11 22
12 45
13 70
14 97
15 27
16 58
17 91
18 27
19 64
20 4
21 45
22 88
23 34
24 81
25 31
26 82
27 36
28 91
29 49
30 9
31 70
32 34
33 99
34 67
35 37
36 108
37 82
38 58
39 36
40 16
41 97
42 81
43 67
44 55
45 45
46 37
47 31
48 27
49 25
50 25
51 27
52 31
53 37
54 45
55 55
56 67
57 81
58 97
59 115
60 36
61 58
62 82
63 108
64 136
65 67
66 99

List of values

[0, 1, 4, 9, 7, 7, 9, 13, 10, 9, 1, 22, 45, 70, 97, 27, 58, 91, 27, 64, 4, 45, 88, 34, 81, 31, 82, 36, 91, 49, 9, 70, 34, 99, 67, 37, 108, 82, 58, 36, 16, 97, 81, 67, 55, 45, 37, 31, 27, 25, 25, 27, 31, 37, 45, 55, 67, 81, 97, 115, 36, 58, 82, 108, 136, 67, 99]

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

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