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A127626
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Triangle T(n,k) = A018804(k) if k|n, else T(n,k)=0.
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1
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1, 1, 3, 1, 0, 5, 1, 3, 0, 8, 1, 0, 0, 0, 9, 1, 3, 5, 0, 0, 15, 1, 0, 0, 0, 0, 0, 13, 1, 3, 0, 8, 0, 0, 0, 20, 1, 0, 5, 0, 0, 0, 0, 0, 21, 1, 3, 0, 0, 9, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 21, 1, 3, 5, 8, 0, 15, 0, 0, 0, 0, 0, 40, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25
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text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Inverse Mobius transform of a matrix with A018804 in the main diagonal and the rest zeros.
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LINKS
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EXAMPLE
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First few rows of the triangle are:
1;
1, 3;
1, 0, 5;
1, 3, 0, 8;
1, 0, 0, 0, 9;
1, 3, 5, 0, 0, 15;
...
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PROG
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(Haskell)
a127626 n k = a127626_tabl !! (n-1) !! (k-1)
a127626_row n = a127626_tabl !! (n-1)
a127626_tabl = map
(map (\x -> if x == 0 then 0 else a018804 x)) a127093_tabl
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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