Locked Twins
نویسندگان
چکیده
منابع مشابه
Evil twins alternate with odious twins
An integer is called evil if the number of ones in its binary expansion is even and odious if the number of ones in the binary expansion is odd. If we look at the integers between 0 and 15 we find that 0, 3, 5, 6, 9, 10, 12, 15 are evil and that 1, 2, 4, 7, 8, 11, 13, 14 are odious. Next we say that if two consecutive integers are evil then this is a pair of evil twins and that if two consecuti...
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ژورنال
عنوان ژورنال: BMJ
سال: 1944
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.4356.12