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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.

A147553 Numbers k such that k^2 divides k.k where dot "." means concatenation.

Table of values

n a(n)
1 1
2 143
3 142857143
4 142857142857143
5 142857142857142857143
6 142857142857142857142857143
7 142857142857142857142857142857143
8 142857142857142857142857142857142857143

List of values

[1, 143, 142857143, 142857142857143, 142857142857142857143, 142857142857142857142857143, 142857142857142857142857142857143, 142857142857142857142857142857142857143]

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

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