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!)
A213444 Numbers n such that decimal expansion of n^2 contains a 2.
(Formerly N1556)
1

%I N1556 #5 Jun 12 2012 00:25:57

%S 5,11,15,16,17,18,23,25,27,32,35,36,39,45,46,47,48,49,50,51,52,53,54,

%T 55,57,61,65,68,73,75,77,79,82,85,89,91,95,96,101,105,106,110,111,112,

%U 113,114,115,118,123,125,127,132,135,139,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166

%N Numbers n such that decimal expansion of n^2 contains a 2.

%D Archimedeans Problems Drive, Eureka, 18 (1955), 17.

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

%Y Cf. A213445.

%K nonn,base

%O 1,1

%A _N. J. A. Sloane_, Jun 12 2012

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 April 19 04:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)