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A007842 Largest determinant of 2n+1 X 2n+1 matrix with entries +-1 and 0 diagonal. +0
1
2, 22, 394, 8760, 240786 (list; graph; listen)
OFFSET

1,1

REFERENCES

F. Bussemaker, I. Kaplansky, B. McKay, J. J. Seidel, Determinants of Matrices of the Conference Type, Linear Alg. Applications, vol. 261 (1997), 275-292.

CROSSREFS

Sequence in context: A078232 A111985 A138463 this_sequence A013519 A084949 A137076

Adjacent sequences: A007839 A007840 A007841 this_sequence A007843 A007844 A007845

KEYWORD

nonn,hard

AUTHOR

njas

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Last modified July 4 01:34 EDT 2008. Contains 140787 sequences.


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