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Search: id:A074564
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| 3, 18, 122, 918, 7442, 63198, 551162, 4877478, 43502882, 389635758, 3497598602, 31434082038, 282690454322, 2543153640318, 22883164406042, 205922723414598, 1853177071709762, 16677961818988878, 150098518713741482
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OFFSET
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0,1
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FORMULA
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G.f.: 1/(1-4*x)+1/(1-5*x)+1/(1-9*x). E.g.f.: e^(4*x)+e^(5*x)+e^(9*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 30 2008]
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MATHEMATICA
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Table[4^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: A011792 A127188 A074558 this_sequence A108241 A004987 A074557
Adjacent sequences: A074561 A074562 A074563 this_sequence A074565 A074566 A074567
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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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