The smallest number k which, when written in base n, has a factorization k = f_1*f_2*...*f_r where f_i >= 1 and the digits of {k, f_1, f_2, ..., f_r} together contain the digits 0,1,...,(n-1) exactly once. Set a(n) = -1 if no such k exists.
A372294
The smallest number k which, when written in base n, has a factorization k = f_1*f_2*...*f_r where f_i >= 1 and the digits of {k, f_1, f_2, ..., f_r} together contain the digits 0,1,...,(n-1) exactly once. Set a(n) = -1 if no such k exists.
Terms
- a(0) =-1a(1) =-1a(2) =-1a(3) =-1a(4) =-1a(5) =104a(6) =440a(7) =1440a(8) =4830a(9) =15552a(10) =72240a(11) =282240a(12) =1039104a(13) =4244940a(14) =24108000
External references
- oeis: A372294