منابع مشابه
The EKG Sequence
The EKG or electrocardiogram sequence is defined by a(1) = 1, a(2) = 2 and, for n ≥ 3, a(n) is the smallest natural number not already in the sequence with the property that gcd{a(n − 1), a(n)} > 1. In spite of its erratic local behavior, which when plotted resembles an electrocardiogram, its global behavior appears quite regular. We conjecture that almost all a(n) satisfy the asymptotic formul...
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ژورنال
عنوان ژورنال: Tidsskrift for Den norske legeforening
سال: 2020
ISSN: 0029-2001
DOI: 10.4045/tidsskr.20.0080