a(n) is the starting position of the first occurrence of a string of n 4's in the decimal expansion of Pi.

A050283

a(n) is the starting position of the first occurrence of a string of n 4's in the decimal expansion of Pi.

Terms

    a(0) =2a(1) =59a(2) =2707a(3) =54525a(4) =808650a(5) =828499a(6) =17893953a(7) =22931745a(8) =1346808619a(9) =66757797341a(10) =66757797341

External references