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 A325827 a(n) = A325825(2*n, sigma(n)). 3
 1, 1, 1, 1, 1, 12, 1, 1, 1, 1, 1, 4, 1, 4, 3, 1, 1, 3, 1, 1, 1, 4, 1, 3, 5, 1, 1, 28, 1, 3, 1, 1, 3, 1, 1, 4, 1, 1, 1, 10, 14, 12, 1, 4, 3, 1, 1, 4, 5, 1, 3, 5, 1, 12, 1, 4, 1, 1, 1, 12, 5, 4, 1, 1, 1, 48, 1, 1, 3, 16, 1, 3, 5, 1, 5, 4, 1, 12, 1, 1, 1, 14, 1, 28, 1, 1, 3, 1, 1, 9, 16, 1, 5, 1, 1, 12, 5, 11, 3, 1, 34, 12, 1, 5, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,6 COMMENTS See also comment in A325808. LINKS Antti Karttunen, Table of n, a(n) for n = 1..20000 FORMULA a(n) = A325825(2*n, A000203(n)). PROG (PARI) A004488(n) = subst(Pol(apply(x->(3-x)%3, digits(n, 3)), 'x), 'x, 3); A325825sq(a, b) = { my(a=fromdigits(Vec(lift(gcd(Pol(digits(a, 3))*Mod(1, 3), Pol(digits(b, 3))*Mod(1, 3)))), 3), b=A004488(a)); min(a, b); }; A325827(n) = A325825sq(n+n, sigma(n)); CROSSREFS Cf. A000203, A325808, A325825. Cf. also A325635, A325636. Sequence in context: A284453 A012454 A322732 * A010208 A306682 A327154 Adjacent sequences:  A325824 A325825 A325826 * A325828 A325829 A325830 KEYWORD nonn AUTHOR Antti Karttunen, May 22 2019 EXTENSIONS Terms corrected to agree with the new corrected definition of A325825. - Antti Karttunen, Jan 11 2020 STATUS approved

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Last modified July 24 23:25 EDT 2021. Contains 346273 sequences. (Running on oeis4.)