155038domain: NAppears in sequencesa(0) = 10; for n>0, a(n) = n*a(n-1)-n-2.at n=8A068444Products of emirpimes pairs, sorted.at n=22A158126Bisection (odd part) of number of partitions that do not contain 1 as a part A002865.at n=30A182747Number of permutations of [n] having a shortest ascending run of length 7.at n=13A228674