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.

A115541 Numbers k such that the concatenation of 5*k with k gives a square.

Table of values

n a(n)
1 1020408163265306122449
2 4081632653061224489796
3 9183673469387755102041
4 106678449690695619239994950132559020325716449943188991289
5 123721752304002019946976391869713420022724403484408534276

List of values

[1020408163265306122449, 4081632653061224489796, 9183673469387755102041, 106678449690695619239994950132559020325716449943188991289, 123721752304002019946976391869713420022724403484408534276]

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

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