Number of (5+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.
A250903
Number of (5+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) =4213a(1) =15111a(2) =44525a(3) =119359a(4) =305429a(5) =764315a(6) =1893433a(7) =4673299a(8) =11537593a(9) =28584535a(10) =71295237a(11) =179606071a(12) =458428429a(13) =1188689987a(14) =3137057025a(15) =8433329995a(16) =23088675409a(17) =64300637535a(18) =181823356333a(19) =520893887439
External references
- oeis: A250903