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A285981
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Number of Carlitz compositions having at least two identical parts.
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1
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0, 0, 0, 0, 1, 2, 3, 10, 20, 44, 67, 149, 277, 528, 959, 1673, 3107, 5572, 9992, 17801, 31647, 55379, 98445, 173288, 305355, 536709, 943353, 1655316, 2900221, 5088098, 8916905, 15624332, 27368888, 47935241, 83939143, 146974040, 257277523, 450432510, 788487147
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OFFSET
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0,6
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LINKS
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FORMULA
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EXAMPLE
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For n=7, there are a(7) = 10 Carlitz compositions with at least two identical parts: 1,5,1; 2,3,2; 3,1,3; 1,2,1,3; 1,2,3,1; 1,3,1,2; 1,3,2,1; 2,1,3,1; 3,1,2,1 and 1,2,1,2,1.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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