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A089237
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List of primes and squares.
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6
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0, 1, 2, 3, 4, 5, 7, 9, 11, 13, 16, 17, 19, 23, 25, 29, 31, 36, 37, 41, 43, 47, 49, 53, 59, 61, 64, 67, 71, 73, 79, 81, 83, 89, 97, 100, 101, 103, 107, 109, 113, 121, 127, 131, 137, 139, 144, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 193, 196, 197, 199, 211, 223, 225, 227
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OFFSET
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1,3
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LINKS
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FORMULA
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MATHEMATICA
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m=100; Sort[Flatten[{Range[0, m]^2, Prime[Range[PrimePi[m^2]]]}]] (* Zak Seidov, Nov 05 2009 *)
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PROG
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(Haskell)
a089237 n = a089237_list !! (n-1)
a089237_list = merge a000040_list a000290_list where
merge xs'@(x:xs) ys'@(y:ys) =
if x < y then x : merge xs ys' else y : merge xs' ys
(PARI) {A89237=List([0..5]); A089237(n)=while(#A89237<n, my(t=A89237[#A89237]); forprime(p=t+1, t=(sqrtint(t)+1)^2, listput(A89237, p)); listput(A89237, t)); A89237[n]} \\ For use in other functions, e.g., A340389. - M. F. Hasler, Jul 24 2021, edited Sep 01 2021
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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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