T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.

A206577

T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.

Terms

    a(0) =4a(1) =16a(2) =16a(3) =61a(4) =256a(5) =61a(6) =232a(7) =3721a(8) =3721a(9) =232a(10) =882a(11) =53824a(12) =188699a(13) =53824a(14) =882a(15) =3353a(16) =777924a(17) =9509750a(18) =9509750a(19) =777924a(20) =3353a(21) =12747a(22) =11242609a(23) =478456896a(24) =1665431164a(25) =478456896a(26) =11242609a(27) =12747a(28) =48460a(29) =162486009

External references