69157domain: NAppears in sequencesInterprimes which are of the form s*prime, s=11.at n=28A075286The five digits of a(n) and their four successive absolute first differences are all distinct.at n=45A365257Antidiagonal-sums of the array A377038(n,k) = n-th term of k-th differences of squarefree numbers (A005117).at n=21A377039