Number of nX7 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself.
A201728
Number of nX7 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself.
Terms
- a(0) =116a(1) =213013a(2) =1757594146
External references
- oeis: A201728