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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.

A177952 a(n) = number of n-digit squares in base 10 such that there is at least one permutation that is also a square in base 10. Initial zeros are not allowed for any square.

Table of values

n a(n)
1 0
2 0
3 7
4 13
5 86
6 293
7 1212
8 4699
9 17380
10 60623
11 203799
12 664953
13 2135649
14 6800449
15 21572602
16 68311990
17 216144075
18 683666674

List of values

[0, 0, 7, 13, 86, 293, 1212, 4699, 17380, 60623, 203799, 664953, 2135649, 6800449, 21572602, 68311990, 216144075, 683666674]

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

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