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.

A115537 Numbers k such that the concatenation of 4*k with k gives a square.

Table of values

n a(n)
1 17728531856
2 27700831025
3 39889196676
4 54293628809
5 70914127424
6 89750692521
7 32653061224489796
8 73469387755102041
9 1245674740484429065743944636678200692041522491349481

List of values

[17728531856, 27700831025, 39889196676, 54293628809, 70914127424, 89750692521, 32653061224489796, 73469387755102041, 1245674740484429065743944636678200692041522491349481]

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

Content is available under The OEIS End-User License Agreement.