منابع مشابه
Statistics for 3-letter patterns with repetitions in compositions
A composition π = π1π2 · · ·πm of a positive integer n is an ordered collection of one or more positive integers whose sum is n. The number of summands, namely m, is called the number of parts of π. Using linear algebra, we determine formulas for generating functions that count compositions of n with m parts, according to the number of occurrences of the subword pattern τ , and according to the...
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ژورنال
عنوان ژورنال: American Journal of Public Health
سال: 1973
ISSN: 0090-0036,1541-0048
DOI: 10.2105/ajph.63.10.836