Number of (n+1) X (2+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
A235887
Number of (n+1) X (2+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
Terms
- a(0) =112a(1) =232a(2) =568a(3) =1624a(4) =5272a(5) =18712a(6) =70168a(7) =271384a(8) =1067032a(9) =4231192a(10) =16850968a(11) =67256344a(12) =268730392a(13) =1074331672a(14) =4296146968a(15) =17182228504a(16) =68724195352a(17) =274887344152
External references
- oeis: A235887