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A089229
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Neither primes nor square numbers.
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10
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6, 8, 10, 12, 14, 15, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 33, 34, 35, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 102, 104, 105, 106
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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MATHEMATICA
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m=100; Complement[Range[0, m^2], Range[0, m]^2, Prime[Range[PrimePi[m^2]]]] (* Zak Seidov, Dec 12 2011*)
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PROG
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(Haskell)
a089229 n = a089229_list !! (n-1)
a089229_list = f a018252_list $ tail a000290_list where
f (u:us) vs'@(v:vs) = if u < v then u : f us vs' else f us vs
(PARI) lista(nn) = for (n=1, nn, if (!issquare(n) && !isprime(n), print1(n, ", "))); \\ Michel Marcus, Jun 01 2015
(Magma) [n: n in [1..200] | not IsSquare(n) and not IsPrime(n)]; // Vincenzo Librandi, Jun 14 2016
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CROSSREFS
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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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