Number of (n+1)X(1+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.
A236730
Number of (n+1)X(1+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.
Terms
- a(0) =81a(1) =345a(2) =1497a(3) =6663a(4) =29617a(5) =132471a(6) =592001a(7) =2651151a(8) =11872153a(9) =53217175a(10) =238621713a(11) =1070656959a(12) =4805940169a(13) =21584396967a(14) =96984517953a(15) =435991819343
External references
- oeis: A236730