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A324078
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a(0) = 1, followed by pairs (value of rarest term, multiplicity of that value). Choose the least value of rarest term if there is a tie.
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4
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1, 1, 1, 1, 3, 3, 1, 3, 2, 2, 1, 2, 2, 3, 3, 2, 4, 4, 1, 4, 2, 4, 3, 4, 4, 2, 6, 6, 1, 6, 2, 6, 3, 6, 4, 6, 5, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 6, 6, 5, 7, 7, 1, 7, 2, 7, 3, 7, 4, 7, 5, 7, 6, 7, 7, 3, 9, 9, 1, 9, 2, 9, 3, 9, 4, 9, 5, 9, 6, 9, 7, 9, 8, 8, 1, 8, 2, 8, 3, 8, 4, 8, 5, 8, 6, 8, 7, 8, 8, 9, 9, 8, 10, 10, 1, 10, 2, 10, 3, 10
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OFFSET
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0,5
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LINKS
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EXAMPLE
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1, term 1 appears 1 time, term 1 appears 3 times, term 3 appears 1 time, term 3 appears 2 times, term 2 appears 1 time, ...
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MATHEMATICA
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Nest[Append[#, First@ SortBy[Union@ Tally[Flatten@ #], Last]] &, {{1}}, 55] // Flatten (* Michael De Vlieger, Feb 25 2019 *)
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CROSSREFS
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A324079 is the same sequence with pairs after a(0) swapped.
A324080 is the sequence of rarest values, A324081 gives their multiplicities.
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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