Number of (n+1) X (1+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.
A235886
Number of (n+1) X (1+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) =40a(1) =112a(2) =352a(3) =1216a(4) =4480a(5) =17152a(6) =67072a(7) =265216a(8) =1054720a(9) =4206592a(10) =16801792a(11) =67158016a(12) =268533760a(13) =1073938432a(14) =4295360512a(15) =17180655616a(16) =68721049600a(17) =274881052672
External references
- oeis: A235886