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A351241 Denominator of the maximal sum of inverse squares of the singular values of symmetric Toeplitz anti-Hadamard matrices of order n. 3
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 8546700, 9763, 49 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,14
LINKS
R. L. Graham and N. J. A. Sloane, Anti-Hadamard matrices, Linear Alg. Applic., 62 (1984), 113-137.
CROSSREFS
Cf. A005312, A005313, A351240 (numerator).
Sequence in context: A174919 A156952 A158748 * A273874 A086039 A265824
KEYWORD
nonn,frac,more
AUTHOR
Stefano Spezia, Feb 05 2022
STATUS
approved

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Last modified September 1 03:07 EDT 2024. Contains 375575 sequences. (Running on oeis4.)