Number of nX6 binary arrays whose sum with another nX6 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.

A225980

Number of nX6 binary arrays whose sum with another nX6 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =42a(1) =790a(2) =16361a(3) =361361a(4) =7718077a(5) =148890101a(6) =2513743785a(7) =36836074434a(8) =470279869497

External references