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A119009 Number of n X n real symmetric (0,1)-matrices with permanent = 1. 1

%I

%S 1,4,22,286,5126,190096,9477868

%N Number of n X n real symmetric (0,1)-matrices with permanent = 1.

%Y Cf. A089482, A119008.

%K nonn,more

%O 1,2

%A _Giovanni Resta_, May 08 2006

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Last modified September 19 10:41 EDT 2020. Contains 337178 sequences. (Running on oeis4.)