Number of (n+1)X5 binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants.
A186897
Number of (n+1)X5 binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants.
Terms
- a(0) =234a(1) =406a(2) =1692a(3) =5401a(4) =14437a(5) =49303a(6) =171877a(7) =608194a(8) =1974583a(9) =6828851a(10) =23697904a(11) =82511604a(12) =280821141a(13) =969113166a(14) =3356595204a(15) =11627225657a(16) =40028089405a(17) =138218574688a(18) =478039503452
External references
- oeis: A186897