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%I A325542 #7 Jul 13 2019 00:42:56
%S A325542 2,3,1,4,1,1,5,1,2,2,7,1,2,2,1,1,6,4,1,3,2,1,1,2,2,2,5,1,4,1,6,1,2,2,
%T A325542 1,1,2,3,1,2,2,6,1,1,4,1,7,4,1,3,3,1,2,2,1,1,5,1,2,2,1,5,2,2,2,1,1,5,
%U A325542 1,4,7,1,4,1,1,5,1,4,1,3,2,1,1,2,2,7
%N A325542 Difference sequence of A325540.
%C A325542 See A325417 for a guide to related sequences. Conjecture: every term is in {1,2,3,4,5,6,7}.
%H A325542 Clark Kimberling, <a href="/A325542/b325542.txt">Table of n, a(n) for n = 1..10000</a>
%t A325542 a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1,
%t A325542 Apply[Or, Map[MemberQ[a, #] &,  Select[Flatten[{(# - 1)/2, (# - 2)/3}],
%t A325542 IntegerQ]]] &]], {200}]; a       (* A325539 *)
%t A325542 Complement[Range[Last[a]], a]    (* A325540 *)
%t A325542 Differences[a]  (* A325541 *)
%t A325542 Differences[c]  (* A325542 *)
%t A325542 (* _Peter J. C. Moses_, Apr 23 2019 *)
%Y A325542 Cf. A325417, A325540, A325541.
%K A325542 nonn,easy
%O A325542 1,1
%A A325542 _Clark Kimberling_, May 07 2019

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