Indices of primes in sequence defined by A(0) = 19, A(n) = 10*A(n-1) - 81 for n > 0.

A102008

Indices of primes in sequence defined by A(0) = 19, A(n) = 10*A(n-1) - 81 for n > 0.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =3a(4) =8a(5) =17a(6) =21a(7) =44a(8) =48a(9) =55a(10) =68a(11) =145a(12) =201a(13) =271a(14) =2729a(15) =2840a(16) =4561a(17) =31809a(18) =43185a(19) =48108a(20) =92690a(21) =237669a(22) =400309a(23) =482705

External references