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Search: id:A074540
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| 3, 16, 110, 862, 7202, 62206, 547130, 4861222, 43437602, 389374126, 3496551050, 31429889782, 282673681202, 2543086539646, 22882895986970, 205921649705542, 1853172776808002, 16677944639250766, 150098449994526890
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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/(1-9*x). E.g.f.: e^(2*x)+e^(5*x)+e^(9*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 + 9^n, {n, 0, 20}]
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CROSSREFS
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Cf. A001550, A001576, A034513, A001579, A074501 - A074580.
Sequence in context: A157452 A074551 A135074 this_sequence A039751 A141003 A002404
Adjacent sequences: A074537 A074538 A074539 this_sequence A074541 A074542 A074543
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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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