Number of nX5 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it).
A202546
Number of nX5 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it).
Terms
- a(0) =1a(1) =16a(2) =422a(3) =15184a(4) =658492a(5) =31670778a(6) =1605067272a(7) =83391232150
External references
- oeis: A202546