Number of n X 4 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.

A278803

Number of n X 4 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.

Terms

    a(0) =15a(1) =154a(2) =1439a(3) =12958a(4) =110455a(5) =870473a(6) =6275546a(7) =41370842a(8) =250517485a(9) =1402100369a(10) =7299678838a(11) =35565305995a(12) =163045228099a(13) =706720556002

External references