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A025000
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a(1) = 3; a(n+1) = a(n)-th nonprime, where nonprimes begin at 0.
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0
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3, 4, 6, 9, 14, 21, 30, 42, 57, 77, 102, 133, 171, 217, 274, 341, 422, 518, 632, 766, 922, 1106, 1320, 1565, 1846, 2171, 2541, 2967, 3447, 3996, 4618, 5321, 6117, 7018, 8027, 9162, 10438, 11858, 13450, 15225, 17205, 19400, 21849, 24573, 27584, 30916, 34612
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Module[{nn=60000, npr}, npr=Complement[Range[0, nn], Prime[ Range[ PrimePi[ nn]]]]; NestList[npr[[#]]&, 3, 50]] (* Harvey P. Dale, Dec 13 2014 *)
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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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