T(n,k)=Number of (n+1)X(k+1) binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
A184071
T(n,k)=Number of (n+1)X(k+1) binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
Terms
- a(0) =7a(1) =11a(2) =11a(3) =20a(4) =16a(5) =20a(6) =34a(7) =36a(8) =36a(9) =34a(10) =54a(11) =73a(12) =130a(13) =73a(14) =54a(15) =81a(16) =134a(17) =382a(18) =382a(19) =134a(20) =81a(21) =116a(22) =225a(23) =924a(24) =1918a(25) =924a(26) =225a(27) =116a(28) =160a(29) =354
External references
- oeis: A184071