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A120512
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a(n) = min{j : A120501(j) = n}.
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2
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1, 4, 8, 9, 14, 15, 17, 18, 24, 25, 27, 28, 31, 32, 34, 35, 42, 43, 45, 46, 49, 50, 52, 53, 57, 58, 60, 61, 64, 65, 67, 68, 76, 77, 79, 80, 83, 84, 86, 87, 91, 92, 94, 95, 98, 99, 101, 102, 107, 108
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internal format)
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OFFSET
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1,2
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LINKS
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FORMULA
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g.f.: P(z) = z / (1-z) * (1 + sum(z^(m^2) * (2 + 1 / (1 - z^(m^2))), m=0..infinity))
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MAPLE
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p := proc(n)
if n=1 then return 1; end if;
for j from p(n-1)+1 to infinity do
if A120501(j) = n then return j; fi; od;
end proc;
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Frank Ruskey and Chris Deugau (deugaucj(AT)uvic.ca), Jun 20 2006
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STATUS
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approved
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