a(n) is the first position in the digit sequence 3,1,4,1,5,9,.... of Pi where the pattern "1,2,...,n" occurs (where position of the initial 3 is 1).

A068987

a(n) is the first position in the digit sequence 3,1,4,1,5,9,.... of Pi where the pattern "1,2,...,n" occurs (where position of the initial 3 is 1).

Terms

    a(0) =2a(1) =149a(2) =1925a(3) =13808a(4) =49703a(5) =2458886a(6) =9470345a(7) =186557267a(8) =523551503a(9) =191278379840

External references