Number of nX3 binary matrices with no initial bit string in any row or column divisible by 6.

A181037

Number of nX3 binary matrices with no initial bit string in any row or column divisible by 6.

Terms

    a(0) =1a(1) =3a(2) =6a(3) =18a(4) =41a(5) =112a(6) =269a(7) =703a(8) =1729a(9) =4427a(10) =11010a(11) =27923a(12) =69819a(13) =176278a(14) =441932a(15) =1113390a(16) =2794963a(17) =7034179a(18) =17669820a(19) =44447034a(20) =111689337

External references