Number of nX6 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it).
A202547
Number of nX6 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) =32a(2) =2094a(3) =219934a(4) =31670778a(5) =5534917394
External references
- oeis: A202547