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Search: id:A047859
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| 1, 4, 11, 27, 63, 143, 319, 703, 1535, 3327, 7167, 15359, 32767, 69631, 147455, 311295, 655359, 1376255, 2883583, 6029311, 12582911, 26214399, 54525951, 113246207, 234881023, 486539263, 1006632959, 2080374783, 4294967295
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OFFSET
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0,2
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FORMULA
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Main diagonal of the array defined by: T(0, j)=j+1 j>=0, T(i, 0)=i+1 i>=0, T(i, j)=T(i-1, j-1)+T(i-1, j)+1 - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 17 2003
a(n)=(n+4)*2^(n-1)-1 - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 17 2003
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CROSSREFS
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n-th difference of a(n), a(n-1), ..., a(0) is (3, 4, 5, ...).
Sequence in context: A034345 A036890 A000253 this_sequence A100335 A080869 A137229
Adjacent sequences: A047856 A047857 A047858 this_sequence A047860 A047861 A047862
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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