41834260

Appears in sequences

• Half the number of (n+1)X3 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.at n=4A183973
• T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.at n=16A183976
• T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.at n=19A183976