Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,4,1,0,1 for x=0,1,2,3,4.
A197368
Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,4,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =3a(2) =32a(3) =45a(4) =189a(5) =646a(6) =1873a(7) =6209a(8) =19883a(9) =62891a(10) =201940a(11) =644884a(12) =2058462a(13) =6580709a(14) =21022103a(15) =67159181a(16) =214583759a(17) =685563259a(18) =2190314160a(19) =6997940987a(20) =22357818950a(21) =71431546562a(22) =228218559544a(23) =729140737836
External references
- oeis: A197368