Number of nX1 0..2 arrays with exactly floor(nX1/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.

A222395

Number of nX1 0..2 arrays with exactly floor(nX1/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =3a(4) =4a(5) =8a(6) =10a(7) =50a(8) =66a(9) =216a(10) =280a(11) =1120a(12) =1472a(13) =5440a(14) =7128a(15) =27576a(16) =36280a(17) =138560a(18) =182336a(19) =704880a(20) =929088a(21) =3590400a(22) =4735744a(23) =18382208a(24) =24268160a(25) =94348800a(26) =124638720a(27) =485706240a(28) =642037760a(29) =2505943040

External references