Number of (n+1) X (1+1) 0..3 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

A233726

Number of (n+1) X (1+1) 0..3 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

Terms

    a(0) =40a(1) =148a(2) =556a(3) =2104a(4) =7976a(5) =30260a(6) =114820a(7) =435720a(8) =1653488a(9) =6274804a(10) =23812172a(11) =90364680a(12) =342924296a(13) =1301361476a(14) =4938528804a(15) =18741194360a(16) =71120848176a(17) =269896091748

External references