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A179860
Integer averages of first n noncomposites for some n.
2
1, 2, 6, 636, 1592, 2574, 292656, 917042, 1108972, 1678508, 3334890730, 3981285760, 28567166356, 32739591796, 83332116034, 871263881618, 1055495274756
OFFSET
1,2
COMMENTS
A variant of A050248 (primes), A073263 (composites) and A160758 (nonprimes).
FORMULA
a(n) = A179861(n) / A179859(n) = A014284(A179859(n)) / A179859(n).
EXAMPLE
Sum of first 7 noncomposites is 42; 42 / 7 = 6 is in the sequence.
CROSSREFS
Cf. A008578 (noncomposites), A014284 (sum of first n noncomposites).
Sequence in context: A132495 A112724 A110795 * A067107 A180492 A169661
KEYWORD
nonn,more
AUTHOR
Ray Chandler, Jul 29 2010
EXTENSIONS
a(16)-a(17) from Robert Price, Apr 21 2013
STATUS
approved