Number of (1+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
A250943
Number of (1+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
Terms
- a(0) =37a(1) =155a(2) =599a(3) =2247a(4) =8189a(5) =29281a(6) =103093a(7) =358683a(8) =1235935a(9) =4225319a(10) =14350733a(11) =48472137a(12) =162955925a(13) =545627419a(14) =1820560999a(15) =6056081319a(16) =20091759229a(17) =66499907441a(18) =219643052501a(19) =724114352379
External references
- oeis: A250943