a(n) is the smallest k that is equal to the sum of the digits of k*(k+1)*...*(k+n-1) in base 10^n, or -1 if such a number does not exist.
A308408
a(n) is the smallest k that is equal to the sum of the digits of k*(k+1)*...*(k+n-1) in base 10^n, or -1 if such a number does not exist.
Terms
- a(0) =1a(1) =33a(2) =-1a(3) =10692a(4) =74016a(5) =1153845a(6) =19999998a(7) =373722624a(8) =3025660311a(9) =39999999996a(10) =-1
External references
- oeis: A308408