Number of (n+1) X (7+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.
A235892
Number of (n+1) X (7+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) =67072a(1) =70168a(2) =76456a(3) =89416a(4) =116872a(5) =177928a(6) =324616a(7) =716296a(8) =1892872a(9) =5818888a(10) =19962376a(11) =73415176a(12) =280984072a(13) =1098775048a(14) =4344969736a(15) =17279810056a(16) =68919294472a(17) =275277478408
External references
- oeis: A235892