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0, 0, 5, 17, 50, 136, 352, 880, 2144, 5120, 12032, 27904, 64000, 145408, 327680, 733184, 1630208, 3604480, 7929856, 17367040, 37879808, 82313216, 178257920, 384827392, 828375040, 1778384896, 3808428032, 8136949760, 17347641344
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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For n>1, a(n) = (n^2+9n-2)*2^(n-4). - Ralf Stephan, May 10 2004
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MATHEMATICA
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LinearRecurrence[{6, -12, 8}, {0, 0, 5, 17, 50}, 30] (* Harvey P. Dale, Jun 13 2016 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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