Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A207370
Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =12a(1) =144a(2) =420a(3) =1736a(4) =5856a(5) =15525a(6) =45738a(7) =115368a(8) =287174a(9) =700960a(10) =1620770a(11) =3730344a(12) =8345010a(13) =18340994a(14) =39838311a(15) =85088956a(16) =179931750a(17) =376333104a(18) =779411136a(19) =1601416922a(20) =3263854675a(21) =6606700688a(22) =13288445988a(23) =26569986742a(24) =52845438100
External references
- oeis: A207370