Indices of primes in sequence defined by A(0) = 51, A(n) = 10*A(n-1) + 31 for n > 0.

A101578

Indices of primes in sequence defined by A(0) = 51, A(n) = 10*A(n-1) + 31 for n > 0.

Terms

    a(0) =1a(1) =2a(2) =85a(3) =133a(4) =184a(5) =343a(6) =395a(7) =475a(8) =833a(9) =1798a(10) =2146a(11) =2417a(12) =5215a(13) =5881a(14) =6215a(15) =13393a(16) =19745a(17) =66484

External references