Number of (n+1)X(1+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237958
Number of (n+1)X(1+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =81a(1) =340a(2) =1422a(3) =6042a(4) =25777a(5) =109200a(6) =462852a(7) =1962464a(8) =8337456a(9) =35340888a(10) =150013756a(11) =635934272a(12) =2700293296a(13) =11446693312a(14) =48598395488a(15) =206013123488a(16) =874700630800
External references
- oeis: A237958