Number of (n+1) X (5+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
A235890
Number of (n+1) X (5+1) 0..3 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock.
Terms
- a(0) =4480a(1) =5272a(2) =6952a(3) =10696a(4) =19720a(5) =43912a(6) =116872a(7) =361096a(8) =1242760a(9) =4578952a(10) =17542792a(11) =68636296a(12) =271486600a(13) =1079840392a(14) =4307160712a(15) =17204252296a(16) =68768239240a(17) =274975428232
External references
- oeis: A235890