Number of (n+1)X7 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

A185795

Number of (n+1)X7 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

Terms

    a(0) =1716a(1) =3456a(2) =7888a(3) =24392a(4) =61676a(5) =175588a(6) =441004a(7) =1379208a(8) =3532152a(9) =10752096a(10) =27566736a(11) =87374372a(12) =225433740a(13) =709275680a(14) =1833687964a(15) =5872284748a(16) =15224916988a(17) =48703456708a(18) =126499375072a(19) =407817168640

External references