Indices of primes in sequence defined by A(0) = 41, A(n) = 10*A(n-1) + 81 for n > 0.

A101738

Indices of primes in sequence defined by A(0) = 41, A(n) = 10*A(n-1) + 81 for n > 0.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =6a(4) =23a(5) =171a(6) =172a(7) =217a(8) =438a(9) =2562a(10) =2781a(11) =2879a(12) =3714a(13) =4391a(14) =10819a(15) =14591a(16) =25053a(17) =27768a(18) =40167a(19) =180991a(20) =193906

External references