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.

A115542 Numbers k such that k^2 is the concatenation of two numbers 5*m and m.

Original entry on oeis.org

7142857142857142857143, 14285714285714285714286, 21428571428571428571429, 730337078651685393258426966292134831460674157303370786517
Offset: 1

Views

Author

Giovanni Resta, Jan 25 2006

Keywords

Examples

			7142857142857142857143^2 = 5102040816326530612245_1020408163265306122449.

Crossrefs

Cf. A102567, A106497, A115527 - A115556.

Extensions

Definition modified by Georg Fischer, Jul 26 2019

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

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