6077590610domain: NAppears in sequencesProduct of primes < n that do not divide n.at n=32A066838Denominator of the n-th term of the inverse binomial transform of 1, 1/2, B_4, B_6, B_8,..., a modified Bernoulli sequence.at n=16A174276a(n) is the denominator of the sum of the reciprocals of the first n squarefree numbers.at n=20A354418