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%I #10 Mar 20 2022 23:23:45
%S 1,4,3,7,2,6,7,7,11,19,9,8,23,7,19,6,17,49,21,29,19,31,13,29,4,19,29,
%T 7,17,13,19,31,3,23,17,19,27,26,23,47,17,7,23,29,22,26,17,29,51,59,29,
%U 17,26,22,18,23,7,17,47,23,21,16,19,17,23,6,49,19,13,17,7,29,19,47,29,13
%N a(n) is the smallest integer such that the mantissa of 1/a(n) contains n.
%C 1/a(n) must contain also at least one nonzero digit after n if n ends with 0; e.g., a(10)=19 because 19 is the smallest integer whose reciprocal (0.052631578947368421052...) contains the digits "10" followed by at least one nonzero digit (to avoid 1/10 = 0.1000...).
%e 11 is the smallest integer whose reciprocal (0.0909...) contains 9, hence a(9) = 11.
%K base,nonn
%O 1,2
%A _Benoit Cloitre_, Aug 09 2002
%E Corrected, edited, and more terms added by _Jon E. Schoenfield_, May 08 2010