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 A204960 Number of (n+1)X7 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing 1

%I

%S 3490,147434,5988660,252709954,11028008070,470866502871,

%T 19640644500055,782197120564655,29737199993040758,1074526840455309433,

%U 37006727830589345931,1216701745652345574008,38327778555441898854202

%N Number of (n+1)X7 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

%C Column 6 of A204962

%H R. H. Hardin, <a href="/A204960/b204960.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..1..1..0..0..0..0..1....0..1..1..1..0..1..1....0..0..0..0..1..1..0

%e ..0..0..0..1..0..0..1....0..1..0..1..1..0..1....0..0..0..0..1..0..1

%e ..1..0..0..1..0..1..0....1..1..1..0..1..1..0....1..1..1..0..1..1..1

%e ..1..0..0..1..0..1..1....1..1..0..1..1..0..1....0..0..0..0..0..1..0

%e ..0..0..0..1..0..0..1....1..1..1..0..1..1..0....0..0..1..0..1..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 20 2012

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Last modified February 3 14:58 EST 2023. Contains 360035 sequences. (Running on oeis4.)