a(n) is the number of digits in the decimal expansion of the fractional part of Pi needed to contain n occurrences of an n-digit substring.

A331882

a(n) is the number of digits in the decimal expansion of the fractional part of Pi needed to contain n occurrences of an n-digit substring.

Terms

    a(0) =1a(1) =22a(2) =219a(3) =1805a(4) =25499a(5) =168882a(6) =3566679a(7) =29325629

External references