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A325428 Complement of A325427. 5

%I #7 Apr 30 2019 21:49:19

%S 3,5,6,9,10,12,15,16,17,19,21,23,27,29,30,33,36,37,39,41,42,45,46,48,

%T 49,51,52,53,57,60,63,64,65,66,69,70,71,75,77,81,82,84,87,88,89,91,93,

%U 95,100,101,102,108,109,111,113,114,117,118,119,120,123,124

%N Complement of A325427.

%C These are the numbers 2x+1 and floor(3x/2) as x ranges through the numbers x>1 in A325427.

%H Clark Kimberling, <a href="/A325428/b325428.txt">Table of n, a(n) for n = 1..10000</a>

%t a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1, Apply[Or,

%t Map[MemberQ[a, #] &, Select[Flatten[{(#-1)/2,

%t If[Mod[#, 3] == 0, (2 #)/3, 0] + If[Mod[#, 3] == 1, 1/3 (1 + 2 #), 0]}],

%t IntegerQ || # == 0]]] &]], {150}]; a (* A325427 *)

%t Complement[Range[Last[a]], a] (* A325428 *)

%t (* _Peter J. C. Moses_, Apr 25 2019 *)

%Y Cf. A325417, A325427.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Apr 30 2019

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Last modified May 3 06:05 EDT 2024. Contains 372205 sequences. (Running on oeis4.)