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 A083985 If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. Then a(n) = gcd(A101594(n), SC(A101594(n))). 3
 3, 1, 1, 3, 1, 1, 9, 1, 3, 1, 6, 1, 2, 9, 2, 1, 1, 1, 1, 1, 9, 1, 1, 3, 1, 6, 1, 9, 2, 1, 12, 1, 3, 1, 1, 9, 1, 3, 1, 1, 1, 2, 9, 2, 1, 1, 2, 3, 1, 9, 1, 1, 3, 1, 3, 1, 9, 2, 1, 12, 1, 2, 3, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 7, 1, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 2, 1, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS EXAMPLE 12 is the term corresponding to k = 48 as (48,84) = 1 a(7) = gcd(18, 81) = 9. CROSSREFS Cf. A083983, A083984, A083986. Cf. A101594. Sequence in context: A139378 A038500 A091840 * A109848 A104146 A326405 Adjacent sequences:  A083982 A083983 A083984 * A083986 A083987 A083988 KEYWORD base,nonn AUTHOR Amarnath Murthy, May 22 2003 EXTENSIONS Corrected and extended by David Wasserman, Dec 07 2004 STATUS approved

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Last modified April 16 03:37 EDT 2021. Contains 343030 sequences. (Running on oeis4.)