A077674 - OEIS

%I #4 Jun 23 2015 11:22:20

%S 2,3,5,6,7,22,23,26,33,35,37,53,55,57,62,65,66,67,73,77,222,223,226,

%T 227,233,235,237,253,255,257,262,263,265,266,267,273,277,322,323,326,

%U 327,335,337,353,355,357,362,365,366,367,373,377,523,526,527,533,535

%N Squarefree numbers with nonzero squarefree digits (2,3,5,6,7).

%C Here 1 is not considered a squarefree number.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Nov 16 2002

%E Corrected and extended by _David Garber_, Nov 19 2002