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Search: id:A074515
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| 3, 14, 98, 794, 6818, 60074, 535538, 4799354, 43112258, 387682634, 3487832978, 31385253914, 282446313698, 2541932937194, 22877060890418, 205892205836474, 1853024483819138, 16677198879535754, 150094704016475858
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OFFSET
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0,1
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FORMULA
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G.f.: 1/(1-x)+1/(1-4*x)+1/(1-9*x). E.g.f.: e^x+e^(4*x)+e^(9*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 26 2008]
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MATHEMATICA
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Table[1^n + 4^n + 9^n, {n, 0, 20}]
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CROSSREFS
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Cf. A001550, A001576, A034513, A001579, A074501 - A074580.
Cf. A052539.
Sequence in context: A113181 A136461 A007470 this_sequence A038051 A132008 A140963
Adjacent sequences: A074512 A074513 A074514 this_sequence A074516 A074517 A074518
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KEYWORD
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easy,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 23 2002
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