Number of nX7 nonnegative integer arrays with upper left 0 and lower right n+7-6 and value increasing by 0 or 1 with every step right or down.
A252929
Number of nX7 nonnegative integer arrays with upper left 0 and lower right n+7-6 and value increasing by 0 or 1 with every step right or down.
Terms
- a(0) =15a(1) =483a(2) =13976a(3) =315198a(4) =5385305a(5) =71297441a(6) =759337545a(7) =6725497344a(8) =50869309436a(9) =335549742230
External references
- oeis: A252929