login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A115533 Numbers k such that the concatenation of 3*k with k gives a square. 0

%I #5 Jul 15 2021 06:29:39

%S 24489796,55102041,97959184,15976331361,28402366864,44378698225,

%T 63905325444,86982248521,

%U 24489795918367346938775510204081632653061224489796

%N Numbers k such that the concatenation of 3*k with k gives a square.

%e 73469388_24489796 = 85714286^2.

%Y Cf. A102567, A106497, A115527 - A115556.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Jan 25 2006

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)