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A008975
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Triangle, read by rows, formed by reading Pascal's triangle (A007318) mod 10.
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20
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1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 0, 0, 5, 1, 1, 6, 5, 0, 5, 6, 1, 1, 7, 1, 5, 5, 1, 7, 1, 1, 8, 8, 6, 0, 6, 8, 8, 1, 1, 9, 6, 4, 6, 6, 4, 6, 9, 1, 1, 0, 5, 0, 0, 2, 0, 0, 5, 0, 1, 1, 1, 5, 5, 0, 2, 2, 0, 5, 5, 1, 1, 1, 2, 6, 0, 5, 2, 4, 2, 5, 0, 6, 2, 1, 1, 3, 8, 6, 5, 7, 6, 6
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OFFSET
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0,5
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LINKS
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FORMULA
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T(i, j) = binomial(i, j) mod 10.
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MATHEMATICA
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Mod[ Flatten[ Table[ Binomial[n, k], {n, 0, 13}, {k, 0, n}]], 10] (* Robert G. Wilson v, May 26 2004 *)
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PROG
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(Haskell)
a008975 n k = a008975_tabl !! n !! k
a008975_row n = a008975_tabl !! n
a008975_tabl = iterate
(\row -> map (`mod` 10) $ zipWith (+) ([0] ++ row) (row ++ [0])) [1]
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CROSSREFS
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Sequences based on the triangles formed by reading Pascal's triangle mod m: A047999 (m = 2), A083093 (m = 3), A034931 (m = 4), A095140 (m = 5), A095141 (m = 6), A095142 (m = 7), A034930 (m = 8), A095143 (m = 9), (this sequence) (m = 10), A095144 (m = 11), A095145 (m = 12), A275198 (m = 14), A034932 (m = 16).
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KEYWORD
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AUTHOR
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STATUS
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approved
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