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 A157749 Antidiagonal of a Golay code related matrix: H = Transpose[m].IdentityMatrix[11] 0
 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Row sums are: {1, 1, 1, 3, 3, 6, 4, 4, 6, 8, 8, ...}. REFERENCES Pegg, Ed Jr.; Terr, David; and Weisstein, Eric W. "Golay Code." http://mathworld.wolfram.com/GolayCode.html LINKS FORMULA H = Transpose[m].IdentityMatrix[11]; t(n,m)=antidiagonal(H). EXAMPLE {1}, {0, 1}, {0, 0, 1}, {1, 1, 0, 1}, {1, 0, 1, 0, 1}, {1, 1, 1, 1, 1, 1}, {0, 1, 0, 1, 0, 1, 1}, {0, 0, 1, 1, 0, 0, 1, 1}, {0, 1, 1, 0, 1, 1, 0, 1, 1}, {1, 1, 0, 1, 1, 0, 1, 1, 1, 1}, {1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0} MATHEMATICA m = {{1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1}, {1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1}, {1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0}, {1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0}, {1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0}, {1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1}, {1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0}, {1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0}, {1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1}, {1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1}, {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}}; H = Transpose[m].IdentityMatrix[11]; b = Table[Table[H[[m, n - m + 1]], {m, n, 1, -1}], {n, 1, Length[H] - 1}]; Flatten[%] CROSSREFS Sequence in context: A266754 A071982 A266588 * A129407 A267594 A273512 Adjacent sequences:  A157746 A157747 A157748 * A157750 A157751 A157752 KEYWORD nonn,tabl,uned AUTHOR Roger L. Bagula, Mar 05 2009 STATUS approved

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Last modified September 26 06:16 EDT 2021. Contains 347664 sequences. (Running on oeis4.)