Number of numbers x < 10^n such that the digits of x^2 occur with an equal frequency of 2.
A225428
Number of numbers x < 10^n such that the digits of x^2 occur with an equal frequency of 2.
Terms
- a(0) =0a(1) =1a(2) =9a(3) =47a(4) =212a(5) =1232a(6) =6592a(7) =31145a(8) =129587a(9) =597959
External references
- oeis: A225428