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%I #7 Apr 02 2013 03:21:55
%S 476,784,1764,2744,3472,3724,4172,4676,4704,4732,4760,4788,4872,5740,
%T 6748,7084,7140,7224,7364,7420,7448,7476,7504,7644,7784,7840,7924,
%U 8764,9744,10472,10724,11704,12740,13748,14476,14672,14700
%N Numbers that are multiples of 28 and contain both a 4 and a 7.
%C You and your father alternate counting. For every number that is divisible by 4 or contains a 4, substitute "buzz". For every number that is divisible by 7 or contains a 7, substitute "bang". The game is over if a mistake is made.
%C The sequence is the "Buzz buzz bang bang" sequence, meaning it has the numbers that get 2 buzzes and 2 bangs in this game.
%t Select[28*Range[600],DigitCount[#,10,4]>0&&DigitCount[#,10,7]>0&] (* _Harvey P. Dale_, Jul 27 2012 *)
%K nonn,base
%O 1,1
%A _N. J. A. Sloane_, Sep 06 2010, based on an email from J. Lowell