Number of (n+1) X (3+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.
A251083
Number of (n+1) X (3+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) =192a(1) =616a(2) =1165a(3) =2362a(4) =4379a(5) =8284a(6) =15411a(7) =29142a(8) =55429a(9) =106880a(10) =207889a(11) =407938a(12) =805159a(13) =1596500a(14) =3175015a(15) =6327486a(16) =12626625a(17) =25218520a(18) =50394485a(19) =100737802a(20) =201414163a(21) =402755596a(22) =805425275a(23) =1610750182a(24) =3221383389a(25) =6442631664
External references
- oeis: A251083