Number of (n+1) X (1+1) 0..4 arrays with every 2 X 2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.
A234107
Number of (n+1) X (1+1) 0..4 arrays with every 2 X 2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.
Terms
- a(0) =56a(1) =186a(2) =604a(3) =2064a(4) =6964a(5) =24156a(6) =83012a(7) =290164a(8) =1007972a(9) =3540836a(10) =12393060a(11) =43708804a(12) =153873060a(13) =544613636a(14) =1926294628a(15) =6839634244a(16) =24285641508a(17) =86475603716a(18) =308037991396
External references
- oeis: A234107