Number of 7's among the digits of all n-digit primes.
A152279
Number of 7's among the digits of all n-digit primes.
Terms
- a(0) =1a(1) =8a(2) =69a(3) =574a(4) =5520a(5) =52155a(6) =502179a(7) =4882568a(8) =47709672a(9) =468269438a(10) =4610668567a(11) =45510662200a(12) =450072137956
External references
- oeis: A152279