Number of (n+1) X (1+1) 0..2 arrays with the maximum plus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237456
Number of (n+1) X (1+1) 0..2 arrays with the maximum plus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =81a(1) =308a(2) =1144a(3) =4272a(4) =16280a(5) =61152a(6) =231680a(7) =869120a(8) =3299584a(9) =12382208a(10) =46966784a(11) =176229376a(12) =668720640a(13) =2509305856a(14) =9520095232a(15) =35722403840a(16) =135538946048a(17) =508589948928
External references
- oeis: A237456