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Nonpalindromes in base 10 that are non-palindromes in base 2.
0

%I #3 Mar 30 2012 18:49:08

%S 10,12,13,14,16,18,19,20,23,24,25,26,28,29,30,32,34,35,36,37,38,39,40,

%T 41,42,43,46,47,48,49,50,52,53,54,56,57,58,59,60,61,62,64,67,68,69,70,

%U 71,72,74,75,76,78,79,80,81,82,83,84,86,87,89,90,91,92,94,95,96,97,98

%N Nonpalindromes in base 10 that are non-palindromes in base 2.

%t Select[Range[100], Reverse[IntegerDigits[ # ]] != IntegerDigits[ # ] && Reverse[IntegerDigits[ #, 2]] != IntegerDigits[ #, 2] &]

%Y Cf. A007632 = numbers that are palindromic in bases 2 and 10.

%K base,nonn

%O 1,1

%A _Tanya Khovanova_, Dec 26 2006