a(n) = count of numbers formed using the digits of next n numbers.
A081992
a(n) = count of numbers formed using the digits of next n numbers.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =96a(4) =5040a(5) =1829520a(6) =2162160a(7) =243243000a(8) =49989139200
External references
- oeis: A081992