Number of nX5 nonnegative integer arrays with upper left 0 and lower right n+5-6 and value increasing by 0 or 1 with every step right or down.
A252927
Number of nX5 nonnegative integer arrays with upper left 0 and lower right n+5-6 and value increasing by 0 or 1 with every step right or down.
Terms
- a(0) =1a(1) =19a(2) =413a(3) =6997a(4) =84910a(5) =762227a(6) =5385305a(7) =31454256a(8) =157376166a(9) =692347393a(10) =2731553014a(11) =9814551889a(12) =32510650689a(13) =100275435009a(14) =290361386801a(15) =794754882094
External references
- oeis: A252927