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A202416
Number of (n+2)X5 binary arrays with no more than one of any consecutive three bits set in any row or column
1
265, 1369, 7209, 37029, 190951, 989393, 5113271, 26412799, 136555683, 705913811, 3648384659, 18857860505, 97476160225, 503834472797, 2604222474347, 13460861134173, 69577058003231, 359632069614433, 1858880460769149
OFFSET
1,1
COMMENTS
Column 3 of A202421
LINKS
FORMULA
Empirical: a(n) = a(n-1) +5*a(n-2) +62*a(n-3) +127*a(n-4) +114*a(n-5) -371*a(n-6) -1575*a(n-7) -1934*a(n-8) +734*a(n-9) +5750*a(n-10) +8836*a(n-11) +2844*a(n-12) -11127*a(n-13) -15425*a(n-14) -6985*a(n-15) +2907*a(n-16) +11546*a(n-17) +11221*a(n-18) +2349*a(n-19) -2359*a(n-20) -3216*a(n-21) -3499*a(n-22) -779*a(n-23) +258*a(n-24) +224*a(n-25) +472*a(n-26) +58*a(n-27) +39*a(n-28) -2*a(n-29) -11*a(n-30) -a(n-32)
EXAMPLE
Some solutions for n=4
..0..0..0..0..0....0..0..0..1..0....0..0..0..0..1....0..0..0..0..0
..0..0..0..1..0....1..0..0..0..1....0..0..0..0..0....0..1..0..0..0
..0..0..0..0..0....0..1..0..0..0....0..0..0..1..0....0..0..0..0..0
..1..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..1..0..0
..0..0..0..0..0....0..0..0..0..1....0..0..0..0..0....0..0..0..0..1
..0..0..0..0..0....1..0..0..1..0....1..0..0..0..0....0..1..0..0..0
CROSSREFS
Sequence in context: A146335 A211714 A259741 * A202471 A202464 A183247
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 19 2011
STATUS
approved