4759413120domain: NAppears in sequencesNumber of permutations of (1,3,5,7,9,...,2n-1) where every adjacent pair in the permutation are coprime.at n=13A107761Number of ways to arrange the numbers (1,3,5,7,9,...,2n-1) in a circle such that every two adjacent numbers are relatively prime.at n=14A107763