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A127186 Number of nonsingular n X n real {0,1}-matrices such that all upper left i X i submatrices are singular for i = 1..n-1. 4

%I

%S 0,2,40,584,1695296

%N Number of nonsingular n X n real {0,1}-matrices such that all upper left i X i submatrices are singular for i = 1..n-1.

%Y Cf. A125587, A125593, A127182, A127183.

%K nonn

%O 1,2

%A _Artur Jasinski_, Jan 08 2007

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Last modified April 9 06:59 EDT 2020. Contains 333344 sequences. (Running on oeis4.)