Number of (n+1)X2 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor.

A205187

Number of (n+1)X2 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor.

Terms

    a(0) =16a(1) =24a(2) =48a(3) =72a(4) =144a(5) =216a(6) =432a(7) =648a(8) =1296a(9) =1944a(10) =3888a(11) =5832a(12) =11664a(13) =17496a(14) =34992a(15) =52488a(16) =104976a(17) =157464a(18) =314928a(19) =472392a(20) =944784a(21) =1417176a(22) =2834352a(23) =4251528a(24) =8503056a(25) =12754584a(26) =25509168a(27) =38263752a(28) =76527504a(29) =114791256

External references