Number of cryptarithms of the form x + y = z in base n for which no summand contains any letter more than once and which have at least one solution.
A277497
Number of cryptarithms of the form x + y = z in base n for which no summand contains any letter more than once and which have at least one solution.
Terms
- a(0) =3a(1) =49a(2) =1020a(3) =28666a(4) =1099824a(5) =57520786a(6) =3882860433a(7) =331811494082
External references
- oeis: A277497