Number of (n+1) X (5+1) 0..3 arrays with every 2 X 2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9.

A234137

Number of (n+1) X (5+1) 0..3 arrays with every 2 X 2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9.

Terms

    a(0) =1280a(1) =1544a(2) =1992a(3) =2984a(4) =4904a(5) =9512a(6) =19368a(7) =45224a(8) =104360a(9) =271784a(10) =670632a(11) =1861544a(12) =4764584a(13) =13716392a(14) =35808168a(15) =105157544a(16) =277398440a(17) =823206824a(18) =2183234472a(19) =6513902504a(20) =17322673064a(21) =51825116072a(22) =138009772968a(23) =413458301864

External references