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A083306
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a(n) = (4*(n+15)^n + n^n)/5.
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3
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1, 13, 232, 4671, 104308, 2560625, 68622228, 1995651019, 62652143668, 2113523516277, 76295945312500, 2936332651924343, 120077491457688948, 5201749713019676569, 238048808542004682388, 11479213178778076171875
(list;
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listen;
history;
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internal format)
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OFFSET
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0,2
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LINKS
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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