A104534 Indices of prime tetranacci numbers.

3, 7, 11, 12, 36, 56, 401, 2707, 8417, 14096, 31561, 50696, 53192, 155182

Offset: 1

Author

Eric W. Weisstein, Mar 13 2005

Keywords

• nonn

Links

• Tony D. Noe and Jonathan Vos Post, Primes in Fibonacci n-step and Lucas n-step Sequences, J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4
• Eric Weisstein's World of Mathematics, Tetranacci Number
• Eric Weisstein's World of Mathematics, Integer Sequence Primes

Crossrefs

Cf. A000078, A104535.

Formula

A000078(a(n) + 2) = A104535(n). - Andrew Howroyd, Oct 08 2024

Extensions

a(14)=155182 found by Eric W. Weisstein, Oct 28 2005