Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,3,2,1,4 for x=0,1,2,3,4.

A196072

Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,3,2,1,4 for x=0,1,2,3,4.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =0a(4) =6a(5) =2a(6) =8a(7) =12a(8) =10a(9) =32a(10) =26a(11) =58a(12) =82a(13) =104a(14) =204a(15) =238a(16) =424a(17) =606a(18) =870a(19) =1438a(20) =1952a(21) =3156a(22) =4602a(23) =6848a(24) =10634a(25) =15354a(26) =23794a(27) =35192a(28) =52844a(29) =80254

External references