Number of n X n symmetric 0..5 arrays with rows, considered as 6-ary numbers, in strictly increasing order.

A162130

Number of n X n symmetric 0..5 arrays with rows, considered as 6-ary numbers, in strictly increasing order.

Terms

    a(0) =6a(1) =105a(2) =8225a(3) =2926875a(4) =4979240000

External references