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A239586 Prime factor >= other prime factor of n-th brilliant number, cf. A078972. 3
2, 3, 3, 5, 7, 5, 7, 5, 7, 7, 11, 13, 13, 17, 19, 17, 19, 23, 17, 23, 29, 19, 31, 19, 29, 23, 31, 37, 23, 41, 43, 37, 29, 47, 31, 23, 41, 29, 43, 53, 31, 47, 37, 59, 29, 61, 53, 41, 37, 31, 43, 67, 59, 41, 71, 61, 47, 73, 43, 29, 37, 79, 67, 47, 31, 53, 83 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = A006530(A078972(n)) = A078972(n) / A239585(n);

A055642(a(n)) = A055642(A239585(n)).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..20000

Dario Alpern, Brilliant Numbers

EXAMPLE

see A239585.

PROG

(Haskell)

a239586 n = a078972 n `div` a239585 n

CROSSREFS

Subsequence of A084127.

Sequence in context: A077558 A122444 A066072 * A180611 A084127 A089934

Adjacent sequences:  A239583 A239584 A239585 * A239587 A239588 A239589

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Mar 22 2014

STATUS

approved

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Last modified April 11 16:42 EDT 2021. Contains 342888 sequences. (Running on oeis4.)