Indices of primes in sequence defined by A(0) = 21, A(n) = 10*A(n-1) + 61 for n > 0.
A101966
Indices of primes in sequence defined by A(0) = 21, A(n) = 10*A(n-1) + 61 for n > 0.
Terms
- a(0) =1a(1) =5a(2) =32a(3) =68a(4) =149a(5) =935a(6) =3134a(7) =5837a(8) =6989a(9) =20785a(10) =57137
External references
- oeis: A101966