A204961 - OEIS

%I #7 Apr 30 2022 21:29:34

%S 9490,659392,43018570,3129723425,246591161060,19640644500055,

%T 1559031370472325,119012217274007744,8686919738508515698,

%U 600759606861216974277,39403490381709868639878,2451231522322760712985703

%N Number of (n+1) X 8 0..1 arrays with rows and columns of permanents of all 2 X 2 subblocks lexicographically nondecreasing.

%C Column 7 of A204962.

%H R. H. Hardin, <a href="/A204961/b204961.txt">Table of n, a(n) for n = 1..41</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A204962.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 20 2012