Total number of 7's digits in the first 10^n primes.
A119298
Total number of 7's digits in the first 10^n primes.
Terms
- a(0) =2a(1) =34a(2) =551a(3) =6338a(4) =72319a(5) =809360a(6) =9543704a(7) =104376285a(8) =1136782466a(9) =12273965395a(10) =134080968533
External references
- oeis: A119298