Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,2,4,0,3 for x=0,1,2,3,4.
A196596
Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,2,4,0,3 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =37a(4) =116a(5) =356a(6) =1068a(7) =3217a(8) =9717a(9) =29312a(10) =88421a(11) =266766a(12) =804810a(13) =2428010a(14) =7325047a(15) =22098889a(16) =66669946a(17) =201136011a(18) =606805618a(19) =1830666938a(20) =5522924202a(21) =16662065199a(22) =50267649223a(23) =151652062770a(24) =457517876847
External references
- oeis: A196596