57820domain: NAppears in sequencesNumber of permutations with certain forbidden subsequences.at n=11A054394Collatz (or 3x+1) trajectory starting at 703.at n=35A161021n^2 * (n^4 - n^2 + n + 1) / 2.at n=7A214085T(n,k) = number of circular arrays of n 1's, n -1's, and k 0's such that no two adjacent elements are equal.at n=45A283614