Number of n X 7 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,3,0,2,2 for x=0,1,2,3,4.
A197455
Number of n X 7 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,3,0,2,2 for x=0,1,2,3,4.
Terms
- a(0) =13a(1) =275a(2) =2887a(3) =53337a(4) =738363a(5) =11014567a(6) =168397471a(7) =2499153985a(8) =37543948067a(9) =563650708913
External references
- oeis: A197455