Number of 5 X n (0,1) matrices such that each row and each column is nondecreasing or nonincreasing.

A086115

Number of 5 X n (0,1) matrices such that each row and each column is nondecreasing or nonincreasing.

Terms

    a(0) =10a(1) =100a(2) =390a(3) =1080a(4) =2470a(5) =4980a(6) =9170a(7) =15760a(8) =25650a(9) =39940a(10) =59950a(11) =87240a(12) =123630a(13) =171220a(14) =232410a(15) =309920a(16) =406810a(17) =526500a(18) =672790a(19) =849880a(20) =1062390a(21) =1315380a(22) =1614370a(23) =1965360a(24) =2374850a(25) =2849860a(26) =3397950a(27) =4027240a(28) =4746430a(29) =5564820

External references