108115domain: NAppears in sequencesQuotient of 'base-3' division described in A032537.at n=39A032538Number of (w,x,y,z) with all terms in {1,...,n} and w*x < 2*y*z.at n=20A211795Numbers n such that n^6+6 and n^6-6 are prime.at n=12A239429