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A181799
List of positive integers, ordered by asymptotic frequency of appearance in A003557; ties broken by listing smaller numbers first.
2
1, 2, 3, 4, 8, 5, 9, 16, 7, 6, 32, 27, 11, 12, 25, 10, 13, 64, 18, 24, 17, 81, 14, 15, 20, 19, 128, 49, 36, 23, 48, 54, 21, 28, 40, 125, 256, 22, 72, 29, 50, 243, 31, 45, 26, 96, 108, 56, 37, 80, 121, 512, 33, 44, 35, 41, 144, 100, 34, 43, 162, 63, 30, 39, 52, 47, 38, 192, 98, 169
OFFSET
1,2
COMMENTS
A permutation of the natural numbers.
The natural density of positive integers m such that A003557(m) = a(n) equals 6/(A181798(n)*Pi^2). If m is coprime to 6, 3m and 4m appear in A003557 equally often.
FORMULA
The natural density of positive integers m such that A003557(m) = n equals 6/(A181797(n)*Pi^2). A181797(n) = n*A048250(n).
CROSSREFS
Sequence in context: A182513 A320504 A376189 * A137623 A358875 A191541
KEYWORD
nonn
AUTHOR
Matthew Vandermast, Dec 05 2010
STATUS
approved