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.

A157466 Numbers of numbers <= n, that are squares when inserting at most one digit in decimal representation (see A157465).

Table of values

n a(n)
0 1
1 2
2 3
3 4
4 5
5 6
6 7
7 7
8 8
9 9
10 10
11 11
12 12
13 12
14 13
15 13
16 14
17 14
18 14
19 15
20 15
21 16
22 17
23 17
24 18
25 19
26 20
27 20
28 21
29 22
30 22
31 23
32 24
33 24
34 25
35 25
36 26
37 26
38 26
39 26
40 27
41 28
42 28
43 28
44 29
45 29
46 29
47 29
48 30
49 31
50 31
51 31
52 32
53 32
54 32
55 32
56 33
57 34
58 34
59 35
60 35
61 36
62 37
63 37
64 38
65 39
66 40
67 41
68 41
69 42
70 42
71 42
72 43

List of values

[1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 12, 13, 13, 14, 14, 14, 15, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23, 24, 24, 25, 25, 26, 26, 26, 26, 27, 28, 28, 28, 29, 29, 29, 29, 30, 31, 31, 31, 32, 32, 32, 32, 33, 34, 34, 35, 35, 36, 37, 37, 38, 39, 40, 41, 41, 42, 42, 42, 43]

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

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