A091158 Indices of terms in the sequence 3, 1, 4, 5, 9, 14, 23, ... (A000285 prefixed with 3) which are prime numbers.

1, 4, 7, 8, 10, 11, 16, 20, 23, 26, 28, 35, 40, 56, 58, 80, 83, 92, 98, 100, 307, 416, 575, 691, 746, 818, 820, 971, 1391, 1487, 2000, 2200, 2368, 2386, 3043, 4076, 4868, 6536, 6776, 6787, 8008, 11915, 18898

Offset

1,2

Links

Table of n, a(n) for n=1..43.

Mathematica

Join[{1}, Flatten[Position[LinearRecurrence[{1, 1}, {1, 4}, 19000], _?PrimeQ]] +1] (* Harvey P. Dale, Nov 17 2013 *)

Crossrefs

Cf. A000285, A091157.

Sequence in context: A026316 A283767 A174142 * A175553 A284684 A175008

Adjacent sequences: A091155 A091156 A091157 * A091159 A091160 A091161

Keyword

nonn

Author

G. L. Honaker, Jr., Dec 23 2003

Extensions

More terms from Ray Chandler, Jan 04 2004

Status

approved