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 A350930 Minimal determinant of an n X n Toeplitz matrix using the integers 1 to 2*n - 1. 6
 1, 1, -5, -42, -1810, -48098, -2737409, -114381074 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..7. Lucas A. Brown, A350930+1.py Wikipedia, Toeplitz Matrix EXAMPLE a(2) = -5: [1 2] [3 1] a(3) = -42: [3 4 1] [5 3 4] [2 5 3] PROG (Python) from itertools import permutations from sympy import Matrix def A350930(n): return min(Matrix([p[n-1-i:2*n-1-i] for i in range(n)]).det() for p in permutations(range(1, 2*n))) # Chai Wah Wu, Jan 27 2022 CROSSREFS Cf. A322908, A323254, A350931 (maximal). Sequence in context: A188405 A216334 A374067 * A368352 A132487 A178614 Adjacent sequences: A350927 A350928 A350929 * A350931 A350932 A350933 KEYWORD sign,hard,more AUTHOR Stefano Spezia, Jan 25 2022 EXTENSIONS a(5) from Alois P. Heinz, Jan 25 2022 a(6) from Pontus von Brömssen, Jan 26 2022 a(7) from Lucas A. Brown, Aug 28 2022 STATUS approved

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Last modified August 9 05:47 EDT 2024. Contains 375027 sequences. (Running on oeis4.)