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A259891
Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000011
1
936, 4662, 40435, 202632, 863502, 5055255, 28982771, 144514845, 753909576, 4156538339, 22079571360, 115439403732, 616985118609, 3302552685297, 17486869963737, 92800385304502, 494726612194783, 2631317292421710
OFFSET
1,1
COMMENTS
Column 5 of A259894
LINKS
FORMULA
Empirical: a(n) = 3*a(n-1) +70*a(n-3) +98*a(n-4) -298*a(n-5) -1036*a(n-6) -4342*a(n-7) -5835*a(n-8) +18804*a(n-9) +43980*a(n-10) +85735*a(n-11) +63577*a(n-12) -270285*a(n-13) -458233*a(n-14) -652872*a(n-15) -379824*a(n-16) +1159084*a(n-17) +1605003*a(n-18) +2054380*a(n-19) +1513808*a(n-20) -1410493*a(n-21) -1630016*a(n-22) -2053913*a(n-23) -1770221*a(n-24) +1119731*a(n-25) +729077*a(n-26) +791754*a(n-27) +960600*a(n-28) -495745*a(n-29) -205791*a(n-30) -131111*a(n-31) -258913*a(n-32) +87189*a(n-33) +32170*a(n-34) +3190*a(n-35) +29291*a(n-36) -3273*a(n-37) -1398*a(n-38) +236*a(n-39) -1078*a(n-40) +41*a(n-41) -10*a(n-42) -5*a(n-43) +8*a(n-44)
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1..0....1..1..0..0..1..0..0....1..0..0..1..0..0..0
..0..1..1..0..0..0..0....0..1..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..1..0....0..0..0..0..0..0..1....0..0..1..0..0..1..0
..0..0..1..0..0..0..1....1..0..0..0..0..0..0....0..0..0..0..0..0..1
CROSSREFS
Sequence in context: A278186 A120810 A027554 * A282382 A282546 A206843
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 07 2015
STATUS
approved