a(n) = number of n-digit squares in base 10 such that there is at least one permutation that is also a square in base 10. Initial zeros are not allowed for any square.
A177952
a(n) = number of n-digit squares in base 10 such that there is at least one permutation that is also a square in base 10. Initial zeros are not allowed for any square.
Terms
- a(0) =0a(1) =0a(2) =7a(3) =13a(4) =86a(5) =293a(6) =1212a(7) =4699a(8) =17380a(9) =60623a(10) =203799a(11) =664953a(12) =2135649a(13) =6800449a(14) =21572602a(15) =68311990a(16) =216144075a(17) =683666674
External references
- oeis: A177952