A239586 Prime factor >= other prime factor of n-th brilliant number, cf. A078972.

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

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