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A175164
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a(n) = 16*(2^n - 1).
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6
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0, 16, 48, 112, 240, 496, 1008, 2032, 4080, 8176, 16368, 32752, 65520, 131056, 262128, 524272, 1048560, 2097136, 4194288, 8388592, 16777200, 33554416, 67108848, 134217712, 268435440
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = 2^(n+4) - 16.
G.f.: 16*x/((1-x)*(1-2*x)).
E.g.f.: 16*(exp(2*x) - exp(x)). (End)
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MATHEMATICA
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PROG
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(Magma) I:=[0, 16]; [n le 2 select I[n] else 3*Self(n-1) - 2*Self(n-2): n in [1..41]]; // G. C. Greubel, Jul 08 2021
(Sage) [16*(2^n -1) for n in (0..40)] # G. C. Greubel, Jul 08 2021
(Python)
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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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