Number of (n+1)X4 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.
A206005
Number of (n+1)X4 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.
Terms
- a(0) =228a(1) =980a(2) =2728a(3) =12068a(4) =33572a(5) =150396a(6) =419108a(7) =1895206a(8) =5286788a(9) =24077032a(10) =67200552a(11) =307662788a(12) =858930264a(13) =3947689488a(14) =11022344624a(15) =50802408116a(16) =141850386688a(17) =655129480632
External references
- oeis: A206005