Number of 6Xn binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.

A266939

Number of 6Xn binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.

Terms

    a(0) =7a(1) =29a(2) =92a(3) =288a(4) =871a(5) =2577a(6) =7185a(7) =19529a(8) =50216a(9) =125786a(10) =298869a(11) =696808a(12) =1546941a(13) =3382516a(14) =7085876a(15) =14650326a(16) =29153966a(17) =57417292a(18) =109223923a(19) =205966389a(20) =376634957a(21) =683318087a(22) =1206075185a(23) =2114385852a(24) =3615867548

External references