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0, 2, 24, 218, 1776, 13682, 102024, 745418, 5374176, 38400482, 272709624, 1928498618, 13597146576, 95668307282, 672119557224, 4717043931818, 33080342678976, 231867574534082, 1624598900644824, 11379821699045018
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OFFSET
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0,2
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COMMENTS
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LINKS
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FORMULA
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MATHEMATICA
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Table[7^n-5^n, {n, 0, 20}] (* or *) LinearRecurrence[{12, -35}, {0, 2}, 20] (* Harvey P. Dale, Feb 10 2018 *)
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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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STATUS
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approved
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