A260054 - OEIS

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A260054

Composites whose prime factorization in base 11 is an anagram of the number in base 11.

4617, 7047, 18193, 33534, 180803, 196352, 217147, 283983, 386391, 422144, 448147, 616977, 705875, 842967, 886250, 926336, 947125, 954747, 1169536, 1235875, 1373375, 1866955, 1883049, 1968259

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..10000

EXAMPLE

4617 = 3^5 * 19. In base 11, 3518 = 3^5 * 18.

MATHEMATICA

Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 11] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 11] &] (* Giovanni Resta, Jul 14 2015 *)

CROSSREFS

Cf. A260046, A260047, A260048, A260049, A260050, A260051, A260052, A260053, A025283, A260055.

Sequence in context: A265971 A265926 A365483 * A253115 A189983 A295431

Adjacent sequences: A260051 A260052 A260053 * A260055 A260056 A260057

KEYWORD

base,easy,nonn

AUTHOR

Stephen Tucker, Jul 14 2015

STATUS

approved