In number theory, an evil number is a non-negative integer that has an even number of 1s in its binary expansion. These numbers give the positions of the zero values in the Thue-Morse sequence, and for this reason they have also been called the Thue-Morse set. Non-negative integers that are not evil are called odious numbers.. The evil numbers are: 3, 5, 6, 9, 10, 12, 15, 17, 18, 20, ... (Sequence A001969 in the OEIS)
Calculate Evil Number
1111111111111111
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