Number of (n+1)X6 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

A185794

Number of (n+1)X6 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

Terms

    a(0) =676a(1) =1408a(2) =3196a(3) =9368a(4) =23064a(5) =61676a(6) =149828a(7) =433296a(8) =1073036a(9) =3000848a(10) =7423780a(11) =21476064a(12) =53645816a(13) =153197812a(14) =383014100a(15) =1109241856a(16) =2792472812a(17) =8043408452a(18) =20257150840a(19) =58652173360a(20) =148613711308a(21) =429039760096

External references