Number of (n+1) X (2+1) 0..1 arrays with each row divisible by 3 and column not divisible by 3, read as a binary number with top and left being the most significant bits.
A262414
Number of (n+1) X (2+1) 0..1 arrays with each row divisible by 3 and column not divisible by 3, read as a binary number with top and left being the most significant bits.
Terms
- a(0) =0a(1) =4a(2) =12a(3) =48a(4) =144a(5) =468a(6) =1404a(7) =4320a(8) =12960a(9) =39204a(10) =117612a(11) =353808a(12) =1061424a(13) =3187188a(14) =9561564a(15) =28693440a(16) =86080320a(17) =258267204a(18) =774801612a(19) =2324483568a(20) =6973450704a(21) =20920588308a(22) =62761764924a(23) =188286003360a(24) =564858010080
External references
- oeis: A262414