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2, 14, 78, 474, 3034, 19942, 133286, 901682, 6155442, 42306750, 292240894, 2026154890, 14085427850, 98109713558, 684326588502, 4778079088098, 33385518460258, 233393453440366, 1632228295176110, 11417968671701306
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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G.f.: 2*(1-7*x+x^2+29*x^3)/((1-x)^2*(1-5*x)*(1-7*x)). - Vincenzo Librandi, Feb 25 2013
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MATHEMATICA
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CoefficientList[Series[2 (1 - 7 x + x^2 + 29 x^3)/((1 - x)^2 (1 - 5 x)(1 - 7 x)), {x, 0, 30}], x] (* Vincenzo Librandi, Feb 25 2013
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PROG
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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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