Number of (n+1)X5 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.
A184066
Number of (n+1)X5 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) =34a(1) =73a(2) =382a(3) =1918a(4) =7671a(5) =22452a(6) =57488a(7) =126978a(8) =248290a(9) =439534a(10) =717161a(11) =1096422a(12) =1592731a(13) =2221230a(14) =2997249a(15) =3936118a(16) =5053167a(17) =6363726a(18) =7883125a(19) =9626694a(20) =11609763a(21) =13847662a(22) =16355721a(23) =19149270a(24) =22243639a(25) =25654158a(26) =29396157a(27) =33484966
External references
- oeis: A184066