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 A260047 Composites whose prime factorization in base 3 is an anagram of the number in base 3. 11
 16, 25, 160, 960, 1125, 1888, 3146, 3488, 3549, 4064, 4235, 4335, 4928, 5415, 5746, 5875, 7502, 7847, 8224, 8414, 8954, 9633, 10016, 10192, 11840, 12103, 12256, 12704, 12716, 12844, 16415, 16820, 16954, 18784, 18880, 19264, 19355, 19481, 22838 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Giovanni Resta, Table of n, a(n) for n = 1..10000 EXAMPLE 16 = 2^4. In base 3, 121 = 2^11. MATHEMATICA Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 3] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 3] &] (* Giovanni Resta, Jul 14 2015 *) CROSSREFS Cf. A260046, A260048, A260049, A260050, A260051, A260052, A260053, A025283, A260054, A260055. Sequence in context: A109685 A188826 A152152 * A061101 A166672 A167358 Adjacent sequences:  A260044 A260045 A260046 * A260048 A260049 A260050 KEYWORD base,easy,nonn AUTHOR Stephen Tucker, Jul 14 2015 STATUS approved

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Last modified April 12 11:51 EDT 2021. Contains 342920 sequences. (Running on oeis4.)