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 A155146 Numbers n such that n^3 has exactly 3 different digits. 10
 5, 6, 8, 9, 14, 15, 30, 36, 40, 62, 70, 92, 101, 110, 173, 192, 211, 300, 400, 700, 888, 1001, 1010, 1100, 1920, 3000, 3543, 4000, 7000, 8880, 10001, 10010, 10100, 11000, 19200, 30000, 35430, 40000, 70000, 88800, 100001, 100010, 100100, 101000, 110000, 110011 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Chai Wah Wu, Table of n, a(n) for n = 1..103 EXAMPLE 14 is in the list because 14^3 = 2744. - Jon Perry, Nov 04 2014 MAPLE a := proc (n) if nops(convert(convert(n^3, base, 10), set)) = 3 then n else end if end proc: seq(a(n), n = 1 .. 150000); # Emeric Deutsch, Jan 27 2009 MATHEMATICA Select[Range[120000], Length[Union[IntegerDigits[#^3]]]==3&] (* Vincenzo Librandi, Nov 04 2014 *) PROG (Python) A155146_list, n3, m = [], 0, 0 for n in range(1, 10**7): ....m += 6*(n-1) ....n3 += m + 1 ....if len(set(str(n3))) == 3: ........A155146_list.append(n) # Chai Wah Wu, Nov 03 2014 (MAGMA) [n: n in [0..120000] | #Set(Intseq(n^3)) eq 3]; // Vincenzo Librandi, Nov 04 2014 (PARI) is(n)=#Set(digits(n^3))==3 \\ Charles R Greathouse IV, Feb 11 2017 CROSSREFS Cf. A030292. Sequence in context: A047439 A095763 A187843 * A125251 A271728 A247047 Adjacent sequences:  A155143 A155144 A155145 * A155147 A155148 A155149 KEYWORD nonn,base AUTHOR Dmitry Kamenetsky, Jan 21 2009 EXTENSIONS Extended by Emeric Deutsch, Jan 27 2009 STATUS approved

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Last modified August 23 22:45 EDT 2019. Contains 326254 sequences. (Running on oeis4.)