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 A324041 Nonpalindromic integers with palindromic product of divisors. 0
 26, 49, 2285, 1109111, 3069307, 12028229, 12866669, 110091011, 10207355549, 11010911011, 11100910111, 13579355059, 30101273647, 30693069307, 111283619361 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Many terms of A327325 are palindromes, hence this sequence. Intersection of A029742 and A327325. a(16) > 3.5*10^11. - Giovanni Resta, Sep 04 2019 LINKS EXAMPLE Divisors of 26 are : 1,2,13,26 and 1*2*13*26=676. MATHEMATICA Select[Range[3200000], !PalindromeQ[#] && PalindromeQ[#^(DivisorSigma[0, #]/2)] &] (* Amiram Eldar, Sep 02 2019 *) PROG (PARI) ispal(n) = my(d=digits(n)); d == Vecrev(d); isok(n) = !ispal(n) && ispal(vecprod(divisors(n))); CROSSREFS Cf. A002113, A007955, A029742, A327325. Sequence in context: A118367 A316120 A261932 * A137263 A073249 A044078 Adjacent sequences: A324038 A324039 A324040 * A324042 A324043 A324044 KEYWORD nonn,base,more AUTHOR Michel Marcus, Sep 02 2019 EXTENSIONS a(8)-a(15) from Giovanni Resta, Sep 04 2019 STATUS approved

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Last modified November 29 07:12 EST 2022. Contains 358422 sequences. (Running on oeis4.)