Number of (n+1) X (1+1) 0..2 arrays with the upper median minus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
A238039
Number of (n+1) X (1+1) 0..2 arrays with the upper median minus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =81a(1) =340a(2) =1440a(3) =6064a(4) =25948a(5) =109200a(6) =466296a(7) =1962720a(8) =8385248a(9) =35292928a(10) =150759392a(11) =634547840a(12) =2710688576a(13) =11409244416a(14) =48737830912a(15) =205137173504a(16) =876305679104
External references
- oeis: A238039