A181240 Number of nX5 binary matrices with no 2X2 circuit having pattern 0101 in any orientation

32, 634, 13262, 275690, 5735478, 119310334, 2481942354, 51630303190, 1074033301458, 22342450688162, 464776188850718, 9668451712623486, 201126823551119586, 4183916965585685474, 87035437968274038914

Offset

1,1

Comments

Column 5 of A181245

Links

R. H. Hardin, Table of n, a(n) for n=1..200

Formula

Empirical: a(n)=21*a(n-1)+9*a(n-2)-278*a(n-3)+73*a(n-4)+790*a(n-5)-662*a(n-6)+29*a(n-7)+69*a(n-8)-10*a(n-9)

Crossrefs

Sequence in context: A004337 A292880 A255262 * A140802 A028204 A028190

Adjacent sequences: A181237 A181238 A181239 * A181241 A181242 A181243

Keyword

nonn

Author

R. H. Hardin Oct 10 2010

Status

approved