Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.

A234108

Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.

Terms

    a(0) =186a(1) =608a(2) =2086a(3) =7742a(4) =29278a(5) =113666a(6) =446590a(7) =1777146a(8) =7128062a(9) =28800050a(10) =116956694a(11) =477079450a(12) =1952467246a(13) =8013263810a(14) =32960180670a(15) =135831293266a(16) =560640193430

External references