Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and all but the outermost 5 rows or columns zero.
A162031
Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and all but the outermost 5 rows or columns zero.
Terms
- a(0) =94285792211
External references
- oeis: A162031