Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237231
Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =9628a(1) =36180a(2) =97862a(3) =233536a(4) =721854a(5) =1737372a(6) =5299502a(7) =12992080a(8) =40059070a(9) =97555340a(10) =300177654a(11) =731229928a(12) =2240228750a(13) =5478702380a(14) =16794581906a(15) =41072728888a(16) =125888770174a(17) =307837473900a(18) =942852920590
External references
- oeis: A237231