147953domain: NAppears in sequencesIntegers n such that each of n, n + 1, n + 2, n + 4, n + 5, n + 6 is the squarefree product of three primes.at n=5A242805Sequence shifts left four places under Weigh transform with a(n) = signum(n) for n<4.at n=35A316076