Number of nX4 0..1 arrays with row sums equal and column sums unequal to adjacent columns.
A202738
Number of nX4 0..1 arrays with row sums equal and column sums unequal to adjacent columns.
Terms
- a(0) =2a(1) =22a(2) =140a(3) =838a(4) =5092a(5) =29680a(6) =183220a(7) =1061814a(8) =6630116a(9) =39048472a(10) =242647660a(11) =1438692856a(12) =8910239756a(13) =53090781836a(14) =327214611580
External references
- oeis: A202738