Number of 4Xn 0..1 arrays with row sums nondecreasing and column sums unimodal.

A223628

Number of 4Xn 0..1 arrays with row sums nondecreasing and column sums unimodal.

Terms

    a(0) =5a(1) =57a(2) =574a(3) =5303a(4) =45580a(5) =371569a(6) =2888847a(7) =21682470a(8) =157890604a(9) =1122989213a(10) =7823305028a(11) =53616424319a(12) =362154769507

External references