A124404 Nonpalindromes in base 10 that are non-palindromes in base 2.

10, 12, 13, 14, 16, 18, 19, 20, 23, 24, 25, 26, 28, 29, 30, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 46, 47, 48, 49, 50, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 64, 67, 68, 69, 70, 71, 72, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 86, 87, 89, 90, 91, 92, 94, 95, 96, 97, 98

Offset: 1

Author

Tanya Khovanova, Dec 26 2006

Keywords

• base
• nonn

Crossrefs

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

Programs

Mathematica

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