Number of nX7 nonnegative integer arrays with each row and column increasing from zero by 0, 1 or 2.
A202811
Number of nX7 nonnegative integer arrays with each row and column increasing from zero by 0, 1 or 2.
Terms
- a(0) =1a(1) =28a(2) =1925a(3) =185051a(4) =17870566a(5) =1420586923a(6) =83834499040
External references
- oeis: A202811