4106261531domain: NAppears in sequencesOdd-indexed terms of A124297.at n=11A001604a(n) = 5*F(n)^2 + 5*F(n) + 1, where F(n) = Fibonacci(n).at n=23A124297Lucas Aurifeuillian primitive part B of Lucas(10*n - 5).at n=11A190781