Number of n X 7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,2,1,1,1 for x=0,1,2,3,4.
A197544
Number of n X 7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,2,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =9a(1) =119a(2) =270a(3) =2081a(4) =6279a(5) =48014a(6) =223832a(7) =1258673a(8) =6255191a(9) =36099651a(10) =182317148a(11) =1002566978a(12) =5243822530a(13) =28535482208a(14) =150520120228a(15) =809991814859
External references
- oeis: A197544