Number of n X 3 binary matrices with no 2 X 2 block having four 1's.
A181246
Number of n X 3 binary matrices with no 2 X 2 block having four 1's.
Terms
- a(0) =8a(1) =57a(2) =417a(3) =3032a(4) =22077a(5) =160697a(6) =1169792a(7) =8515337a(8) =61986457a(9) =451223152a(10) =3284626797a(11) =23910060017a(12) =174050512312
External references
- oeis: A181246