Number of (n+1)X7 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.
A184068
Number of (n+1)X7 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) =81a(1) =225a(2) =1884a(3) =22452a(4) =288744a(5) =2663589a(6) =19694227a(7) =116690636a(8) =572683182a(9) =2305864084a(10) =7782298646a(11) =22382616957a(12) =56141874238a(13) =124734871342a(14) =249667791032a(15) =456693083041a(16) =773758373131
External references
- oeis: A184068