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A074530
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a(n) = 2^n + 3^n + 8^n.
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1
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3, 13, 77, 547, 4193, 33043, 262937, 2099467, 16784033, 134237923, 1073801897, 8590113787, 68720012273, 549757416403, 4398051310457, 35184386470507, 281475019822913, 2251799942956483, 18014398897164617, 144115189238641627
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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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G.f.: 1/(1-2*x) + 1/(1-3*x) + 1/(1-8*x).
E.g.f.: exp(2*x) + exp(3*x) + exp(8*x). (End)
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MATHEMATICA
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Table[2^n + 3^n + 8^n, {n, 0, 20}]
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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