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A160962 Perfect numbers written in base 4. 2

%I #3 May 01 2013 21:09:56

%S 12,130,13300,1333000,1333333000000,13333333300000000,

%T 1333333333000000000,1333333333333333000000000000000,

%U 1333333333333333333333333333333000000000000000000000000000000

%N Perfect numbers written in base 4.

%Y Cf. A000043, A000396, A000668, A135650.

%K nonn,base

%O 1,1

%A Vladislav-Stepan Malakhovsky and _Juri-Stepan Gerasimov_, May 31 2009

%E Edited by _N. J. A. Sloane_, Jun 07 2009

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)