Total number of positive integers < 10^n with multiplicative digital root value 4.
A263472
Total number of positive integers < 10^n with multiplicative digital root value 4.
Terms
- a(0) =1a(1) =10a(2) =65a(3) =279a(4) =894a(5) =2345a(6) =6174a(7) =66354a(8) =1005399a(9) =9737884a(10) =66699415a(11) =356586629a(12) =1585685916a(13) =6342292785a(14) =30560724590a(15) =264486626166
External references
- oeis: A263472