Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4.
A196984
Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =25a(4) =81a(5) =242a(6) =707a(7) =2095a(8) =6224a(9) =18499a(10) =54863a(11) =162682a(12) =482707a(13) =1432377a(14) =4249808a(15) =12608401a(16) =37408069a(17) =110988820a(18) =329298679a(19) =977007545a(20) =2898720410a(21) =8600339717a(22) =25516721819a(23) =75706627806a(24) =224617138645a(25) =666426019913
External references
- oeis: A196984