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.
%I A077675 #6 Jun 23 2015 11:22:20
%S A077675 11,14,19,41,89,91,94,111,114,118,119,141,149,181,191,194,199,411,418,
%T A077675 419,449,481,489,491,494,498,499,811,814,818,849,881,889,894,898,899,
%U A077675 911,914,919,941,949,989,991,994,998,1111,1114,1118,1119,1141,1149
%N A077675 Squarefree numbers with square nonzero square digits.
%t A077675 Select[Flatten[Table[FromDigits/@Tuples[{1,4,8,9},n],{n,2,4}]],SquareFreeQ] (* _Harvey P. Dale_, Oct 10 2013 *)
%Y A077675 Cf. A077674.
%K A077675 base,nonn
%O A077675 1,1
%A A077675 _Amarnath Murthy_, Nov 16 2002
%E A077675 Corrected and extended by _David Garber_, Nov 19 2002