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A089247 a(n) = smallest number obtainable by permuting the exponents in the prime factorization of n. 6
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 12, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 20, 51, 52, 53, 24, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

PROG

(Haskell)

import Data.List (sort)

a089247 n = product $ zipWith (^)

                      (a027748_row n) (reverse $ sort $ a124010_row n)

-- Reinhard Zumkeller, Apr 27 2013

(PARI) a(n)=my(f=factor(n)); f[, 2]=vecsort(f[, 2], , 4); factorback(f) \\ Charles R Greathouse IV, Sep 02 2015

CROSSREFS

Cf. A027748, A124010, A046523, A071364, A085079.

Sequence in context: A301274 A093616 A331172 * A167974 A106620 A080685

Adjacent sequences:  A089244 A089245 A089246 * A089248 A089249 A089250

KEYWORD

easy,nonn

AUTHOR

Sam Alexander, Dec 11 2003

STATUS

approved

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Last modified August 3 13:22 EDT 2021. Contains 346438 sequences. (Running on oeis4.)