Indices of primes in the tetranacci sequence A001631.
A247027
Indices of primes in the tetranacci sequence A001631.
Terms
- a(0) =5a(1) =7a(2) =12a(3) =19a(4) =47a(5) =97a(6) =124a(7) =244a(8) =564a(9) =1037a(10) =12007a(11) =13662a(12) =180039
External references
- oeis: A247027