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Search: id:A074621
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| 2, 15, 117, 945, 7857, 66825, 578097, 5062905, 44726337, 397498185, 3547250577, 31743856665, 284606318817, 2554926522345, 22955156619057, 206361317079225, 1855841298759297, 16694108359111305, 150196195253667537
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OFFSET
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0,1
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FORMULA
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G.f.: 1/(1-6*x)+1/(1-9*x). E.g.f.: e^(6*x)+e^(9*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 11 2009]
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MATHEMATICA
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Table[6^n + 9^n, {n, 0, 20}]
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CROSSREFS
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Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074600 - A074624.
Sequence in context: A031507 A052861 A161937 this_sequence A052448 A127610 A085228
Adjacent sequences: A074618 A074619 A074620 this_sequence A074622 A074623 A074624
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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 26 2002
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