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A013758
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a(n) = 16^(3n+1).
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2
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16, 65536, 268435456, 1099511627776, 4503599627370496, 18446744073709551616, 75557863725914323419136, 309485009821345068724781056, 1267650600228229401496703205376, 5192296858534827628530496329220096
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 4096*a(n-1), n>0; a(0)=16.
G.f.: 16/(1-4096*x).
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MATHEMATICA
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16^(3Range[0, 20]+1) (* or *) NestList[4096#&, 16, 20] (* Harvey P. Dale, Aug 14 2021 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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