Number of (n+1)X4 0..3 arrays with every 2X3 or 3X2 subblock having exactly one clockwise edge increases.
A206201
Number of (n+1)X4 0..3 arrays with every 2X3 or 3X2 subblock having exactly one clockwise edge increases.
Terms
- a(0) =1768a(1) =3008a(2) =5136a(3) =11832a(4) =27400a(5) =60800a(6) =145208a(7) =346080a(8) =775944a(9) =1799656a(10) =4265112a(11) =9666256a(12) =22287416a(13) =52569856a(14) =120132224a(15) =276283624a(16) =648644008a(17) =1490750392a(18) =3426149328a(19) =8010922248a(20) =18480112640a(21) =42488361472a(22) =99015558792a(23) =228939593928
External references
- oeis: A206201