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A325601
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Positions of 2 in A325599.
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5
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4, 6, 8, 12, 15, 19, 22, 26, 29, 31, 33, 37, 40, 42, 46, 49, 51, 53, 57, 60, 62, 66, 69, 71, 73, 77, 80, 82, 86, 89, 93, 96, 100, 103, 105, 107, 111, 114, 116, 120, 123, 127, 130, 132, 134, 138, 141, 143, 147, 150, 154, 157, 161, 164, 166, 168, 172, 175, 177
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OFFSET
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1,1
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COMMENTS
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All the terms of A325599 are in {1,2}, so that A325600 and A325601 are a complementary pair.
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LINKS
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Clark Kimberling, Table of n, a(n) for n = 1..10000
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MATHEMATICA
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mex[list_, start_] := (NestWhile[# + 1 &, start, MemberQ[list, #] &]); a = {1}; Do[AppendTo[a, mex[Rest[2 a] + Most[a], Last[a] + 1]], {60}]; a (* A325597 *)
c = Complement[Range[Last[a]], a] (* A325598 *)
da = Differences[a] (* A325599 *)
Flatten[Position[da, 1]] (* A325600 *)
Flatten[Position[da, 2]] (* A325601) *)
(* Peter J. C. Moses, May 07 2019 *)
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CROSSREFS
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Cf. A325597, A325599, A325600.
Sequence in context: A334468 A020177 A239439 * A310662 A231569 A337812
Adjacent sequences: A325598 A325599 A325600 * A325602 A325603 A325604
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KEYWORD
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nonn,easy
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AUTHOR
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Clark Kimberling, May 11 2019
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STATUS
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approved
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