Search: id:A030142 Results 1-1 of 1 results found. %I A030142 %S A030142 1,3,5,7,9,21,23,25,27,29,41,43,45,47,49,61,63,65,67,69,81,83,85,87, %T A030142 89,101,103,105,107,109,121,123,125,127,129,141,143,145,147,149,161, %U A030142 163,165,167,169,181,183,185,187,189,301,303,305,307,309,321,323 %N A030142 Odd numbers in which parity of digits alternates. %Y A030142 Sequence in context: A083107 A003052 A003219 this_sequence A076185 A101813 A134719 %Y A030142 Adjacent sequences: A030139 A030140 A030141 this_sequence A030143 A030144 A030145 %K A030142 nonn,base %O A030142 0,2 %A A030142 Patrick De Geest (pdg(AT)worldofnumbers.com) Search completed in 0.001 seconds