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.

A174499 Smallest number whose square starts and ends with (at least) n identical digits.

Table of values

n a(n)
1 1
2 88
3 10538
4 235700
5 10541000
6 57735000
7 7453560000
8 14907120000
9 18257418600000
10 29814239700000
11 298142397000000
12 1490711985000000
13 14907119850000000
14 105409255338950000000
15 7453559924999300000000
16 10540925533894600000000

List of values

[1, 88, 10538, 235700, 10541000, 57735000, 7453560000, 14907120000, 18257418600000, 29814239700000, 298142397000000, 1490711985000000, 14907119850000000, 105409255338950000000, 7453559924999300000000, 10540925533894600000000]

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

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