Number of (n+1) X (5+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251085
Number of (n+1) X (5+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =872a(1) =2534a(2) =4379a(3) =8512a(4) =14891a(5) =27040a(6) =48017a(7) =87488a(8) =160737a(9) =301824a(10) =574763a(11) =1111016a(12) =2169343a(13) =4270640a(14) =8452477a(15) =16793312a(16) =33445781a(17) =66718416a(18) =133223943a(19) =266191016a(20) =532072547a(21) =1063777504a(22) =2127119369a(23) =4253728192a(24) =8506859561a(25) =17013027680
External references
- oeis: A251085