28143378001domain: NAppears in sequencesOdd-indexed terms of A124296.at n=12A001603Largest prime divisor of Lucas(5*n), where Lucas(k) = A000032(k).at n=24A121171a(n) = 5*F(n)^2 - 5*F(n) + 1, where F(n) = Fibonacci(n).at n=25A124296Lucas Aurifeuillian primitive part A of Lucas(10*n - 5).at n=12A190757