A181210 Number of nX6 binary matrices with no two 1's adjacent diagonally or antidiagonally

64, 441, 9025, 104976, 1630729, 21836929, 315701824, 4388400025, 62249751001, 873880953856, 12333757683025, 173597094140625, 2446840043215936, 34462915406893801, 485580777431805169, 6840488501157755536

Offset

1,1

Comments

Column 6 of A181212

Links

R. H. Hardin, Table of n, a(n) for n=1..100

Formula

Empirical: a(n)=15*a(n-1)+52*a(n-2)-1045*a(n-3)+803*a(n-4)+17330*a(n-5)-30225*a(n-6)-98253*a(n-7)+228176*a(n-8)+160607*a(n-9)-559589*a(n-10)+6282*a(n-11)+499824*a(n-12)-154008*a(n-13)-117936*a(n-14)+46656*a(n-15)

Crossrefs

Sequence in context: A317237 A282771 A188821 * A092211 A130812 A187518

Adjacent sequences: A181207 A181208 A181209 * A181211 A181212 A181213

Keyword

nonn

Author

R. H. Hardin Oct 10 2010

Status

approved