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Line 1: A '''strictly non-palindromic number''' is an integer ''n'' that is not [[palindromic number\|palindromic]] in any [[numeral system]] with a [[radix\|base]] ''b'' in the range 2 ≤ ''b'' ≤ ''n'' − 2. For example, the number [[6 (number)\|six]] is written as 110 in [[~~binary~~Binary numeral system\|base 2]], 20 in [[ternary\|base 3]] and 12 in [[quaternary numeral system\|base 4]], none of which is a palindrome—so 6 is strictly non-palindromic. The sequence of strictly non-palindromic numbers {{OEIS\|id=A016038}} starts:

Strictly non-palindromic number: Difference between revisions