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 A178226 Characteristic function of A154809 (numbers that are not binary palindromes) 2
 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS a(n)=1 if n is in A154809, a(n)=0 otherwise. Identical to parity of A086757 (Smallest prime p such that n is a palindrome in base p representation) LINKS Antti Karttunen, Table of n, a(n) for n = 0..65537 FORMULA a(n) = 1 - A178225(n). - Antti Karttunen, Dec 15 2017 PROG (PARI) A178226(n) = (n!=subst(Polrev(binary(n)), x, 2)); \\ Antti Karttunen, Dec 15 2017 CROSSREFS Cf. A030101, A057891, A086757, A154809, A178225, A280505, A280506. Sequence in context: A144599 A144608 A327208 * A288622 A095907 A056051 Adjacent sequences: A178223 A178224 A178225 * A178227 A178228 A178229 KEYWORD base,easy,nonn AUTHOR Jeremy Gardiner, May 23 2010 STATUS approved

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Last modified March 24 18:08 EDT 2023. Contains 361510 sequences. (Running on oeis4.)