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Search: id:A074538
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| 3, 14, 78, 476, 3042, 19964, 133338, 901796, 6155682, 42307244, 292241898, 2026156916, 14085431922, 98109721724, 684326604858, 4778079120836, 33385518525762, 233393453571404, 1632228295438218, 11417968672225556
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OFFSET
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0,1
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FORMULA
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G.f.: 1/(1-2*x)+1/(1-5*x)+1/(1-7*x). E.g.f.: e^(2*x)+e^(5*x)+e^(7*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 27 2008]
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MATHEMATICA
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Table[2^n + 5^n + 7^n, {n, 0, 20}]
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CROSSREFS
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Cf. A001550, A001576, A034513, A001579, A074501 - A074580.
Sequence in context: A100937 A048779 A052186 this_sequence A001564 A059276 A003169
Adjacent sequences: A074535 A074536 A074537 this_sequence A074539 A074540 A074541
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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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